Boat Cruises & Tours in Lisbon
59 Cruises & Boat Tours in Lisbon with the best guides from €15 🏆 Compare prices, book online tours in Lisbon
Activities and tickets
59
59
59 offers
Popular
Top pick
4.6
1080 reviews
2-hour Sunset Boat Tour with Music and Drinks
Embark on a fun sunset cruise aboard a spacious boat. Glide along the river and witness breathtaking views of iconic Lisbon landmarks as you sip on wine or beer and listen to upbeat music.
Group
2 hrs
Today at 16:00
Tomorrow at 16:00
€20.90
per person
Popular Choice
4.6
617 reviews
2-hour Sunset Boat Party Cruise with DJ and Open Bar
Dance into the night on a Lisbon sunset boat cruise. Enjoy city lights from Praça do Comércio to Torre de Belém while sipping drinks from the onboard open bar, all to the beats of a DJ.
Group
2 hrs
Today at 16:15
Today at 16:25
€38
per person
Perfect Date
4.8
466 reviews
2-hour Romantic Cruise with Wine & Portuguese Tapas
Discover the main riverside monuments of the city of Lisbon on a relaxing sailboat cruise. Enjoy the sunset from the Tagus River and toast with typical tapas.
Private
2 persons
2 hrs
Today at 11:00
Today at 13:00
€250
per group
4.6
869 reviews
1,5-hour Tagus River Boat Tour with Welcome Drink
Admire unique views of Lisbon from the Tagus river on this cruise. View sights from the Alfama district to the Tower of Belém while sipping on a glass of Muscatel wine from Setúbal.
Group
1 hr 30 min
Today at 10:40
Today at 12:40
€19
per person
Likely to sell out
4.8
2394 reviews
1,5-hour Tagus River Cruise with Audio Guide
Join a cruise on the Tagus River to see Lisbon's top attractions. Admire the Monument to the Discoveries, Commerce Square, and the 25 de Abril Bridge from the water.
Group
1 hr 30 min
Today at 10:20
Today at 11:20
€19.95
per person
Likely to sell out
4.7
327 reviews
45min Tagus River Express Cruise in a Traditional Vessel
Cruise along the River Tagus waterfront and admire the romantic city centre of Lisbon on a 45 minute tour in a traditional boat. See the Terreiro do Paco, built in the 18th century and observe the historical city center, all from the water.
Group
45 min
Today at 14:30
Tomorrow at 14:30
€15
per person
5.0
805 reviews
2-hour Sunset Sailing Tour on Luxury Sailing Yacht with 2 Drinks
Experience Lisbon's beauty as you set sail off its coast for a sunset cruise.
Group
2 hrs
Today at 15:15
Tomorrow at 15:15
€60
per person
Flexible Time
4.6
730 reviews
1 or 2-hour River Cruise (Morning, Day, Sunset or Night)
Set off on a scenic sailing tour along the Tagus River on a luxury sailboat and admire the city from a unique perspective. Choose which time of day you prefer, each with its own special quality.
Group
to 2 hrs
Today at 10:00
Today at 11:00
from€22
per person
Vintage Sail
4.6
365 reviews
2-hour Sunset Cruise on a Vintage Sailboat
Cruise along the Tagus River by vintage sailing boat and marvel at the historical monuments of Lisbon at sunset. Feast on traditional snacks, served with a glass of white or rosé wine.
Group
2 hrs
Today at 15:30
Tomorrow at 15:30
€55
per person
5.0
775 reviews
2-hour Sailboat Sunset Tour with a Drink
Depart from central Lisbon aboard a beautiful sailboat and spend the evening on a relaxing sunset cruise along the Tagus River. Enjoy a drink while you take in the stunning views of the city at dusk.
Small group
10 persons
2 hrs
Today at 18:30
Tomorrow at 18:30
€35
per person
New
4.8
Guide rating
2-hour Daily Boat Tour with Drinks & Snacks (Small Group)
Explore the richness of Lisbon on a boat tour. Admire the city from the place it is meant to be seen: the water!
Small group
6 persons
2 hrs
Today at 11:00
Tomorrow at 11:00
€30
per person
4.7
583 reviews
2-hour Sunset Cruise with Live DJ and Drinks
Set sail on a refreshing sunset cruise to end your day in Lisbon. Enjoy the breathtaking sunset from the river while sipping on a complimentary drink and maybe even dance a little to the sound of a pro DJ.
Group
2 hrs
Today at 19:30
Tomorrow at 19:30
€35
per person
4.9
820 reviews
2-hour Sunset Sailing Cruise with a Drink (Small Group)
A boat trip along the Tagus River is one of the best ways to see the historic city of Lisbon.
Small group
10 persons
2 hrs
Today at 15:30
Tomorrow at 15:30
€48
per person
River Crossing
4.8
Guide rating
40-minute Ferry Ride Between Praça Do Comercio & Torre de Belém
Board the ferry at either of the stops and admire views of Lisbon as you glide along the Tagus River.
Group
to 40 min
Today at 11:20
Today at 12:20
from€13.49
per person
Wonder Combo
4.8
Guide rating
4-hour Dolphin Watching Boat Tour & MAAT Entry Ticket (valid 1 day)
Discover Lisbon in a unique way with a combo ticket. Explore international exhibitions at MAAT after admiring wild dolphins in their natural habitat on a boat tour along the coast of Lisbon.
Entry ticket
1 day
Today at 09:30
Tomorrow at 09:30
€72
per person
4.8
Guide rating
Private Half-Day Dolphin Watching in the Wild
Set out to discover a rare sedentary population of bottlenose dolphins in the Sado Estuary. Embark on a 2-hour boat tour to try to spot some of these majestic creatures and relax with hotel pickup.
Private
8 persons
4 hrs
Today at 09:00
Today at 14:00
€305
per group
4.8
Guide rating
2.5 or 7 hour Arrábida Natural Park Dolphin Watching Boat Tour with Transfe
Discover the marine reserve of the Arrábida Natural Park and its dolphins on a boat tour. Admire the landscape of limestone cliffs as you search for the playful pods of dolphins.
Small group
to 8 persons
to 7 hrs
Today at 08:30
Today at 10:00
from€50
per person
New
4.8
Guide rating
2-hour Sailboat Sunset Tour by Rivermountain
Amazing Sunset Tejo River Tour - 2hours Departures from the Alcântara Marina, Gate 3 ( google Blue Skipper Snacks & Drinks) Up to 13 guests on board.
Group
2 hrs
Today at 16:00
Tomorrow at 16:00
€35
per person
5.0
229 reviews
2-hour Sunset Boat Tour with Postcard Scenery
Sail at sunset along the Tagus with views of the Belém Tower, 25 de Abril Bridge and other Lisbon icons, on a relaxing ride with a golden backdrop and unforgettable atmosphere.
Small group
6 persons
2 hrs
Today at 19:00
Tomorrow at 19:00
€45
per person
4.8
Guide rating
Lisbon PRIVATE Half Day Tour
Create your own itinerary and see the Lisbon attractions of your choice on this private half-day tour. Select points of interest with your driver such as the Lisbon Cathedral, Park Edward VII, the neighborhoods of Alfama and Bairro Alto, the Jeronimos Monastery, and more.
Private
7 persons
4 hrs
Today at 09:00
Today at 14:00
€350
per group
4.8
Guide rating
Hop-On Hop-Off Bus, Tram Tour, River Cruise for 72 hours
Spend 72 hours exploring the best of Lisbon with tickets for four tours including two bus tours, a historic tram tour, and a boat tour of the Tagus River.
Group
2 hrs
Tomorrow at 00:00
Tue, 25 Nov, 00:00
€47
per person
4.3
432 reviews
4-hour Sunset Boat Party with 2 Drinks and Free Club Entry
Experience the ultimate party on the Tagus river aboard an enormous sailing boat. Dance to an electrifying DJ, enjoy stunning sunset views of Lisbon, and get entrance to one of the city's top clubs.
Group
4 hrs
Thu, 27 Nov, 19:00
Fri, 28 Nov, 19:00
€45.10
per person
4.5
323 reviews
2-hour Sunset Boat Tour with Snacks & Drinks
Experience Lisbon's beautiful Sunset and it's iconic landmarks from a river's perspective, on a redesigned Portuguese fishing boat, crafted for a more intimate and comfortable experience.
Small group
10 persons
2 hrs
Today at 18:30
Tomorrow at 18:30
€45
per person
Local Flavors
5.0
357 reviews
4-hour Alfama Charms, Tapas, Wine and Sunset Boat Cruise
Enjoy an unforgettable experience in Lisbon, starting with a gastronomic tour in the iconic Alfama district. At sunset savor a local wine as you sail along the Tagus River and take in the views.
Group
4 hrs
Tomorrow at 13:00
Tue, 25 Nov, 13:00
€89.99
per person
4.4
1080 reviews
3-hour Tagus River Cruise to the Ocean & Dolphin Watching
Relax and see wild dolphins off Lisbon's coast on a 3-hour cruise with a marine biologist onboard.
Group
3 hrs
Today at 10:30
Today at 14:30
€35
per person
4.4
628 reviews
2-hour Private Tagus River Sunset Cruise on a Luxury Boat
Enjoy a relaxing sunset cruise on the River Tagus. Take in the views of the city and a beautiful sunset from the comfort of a luxury sailing boat in the privacy of your group.
Private
12 persons
2 hrs
Today at 19:00
Tomorrow at 19:00
€300
per group
Authentic Ride
4.7
282 reviews
1h 45min Scenic Tagus River Cruise on a Traditional Vessel
On this guided cruise, have the opportunity to see the wonderful landscape of the historical city center as you pass by some of the city's most significant sights on a traditional 1947 boat.
Group
1 hr 45 min
Today at 16:30
Tomorrow at 16:30
€25
per person
4.7
312 reviews
3-hour Dolphin Watching with Marine Biologist (Small Group)
Take a speedboat trip from Lisbon and search for dolphins while sailing along the Atlantic. Get to know the ocean wildlife with an expert marine biologist on this intimate and non-crowded experience.
Small group
7 persons
3 hrs
Today at 09:30
Today at 14:00
€69
per person
How do excursions differ?
Private excursions
Private excursions - the guide will conduct an excursion only for you and your friends.
Group excursions
Group excursions - the guide forms a group. Other tourists will learn new things with you.
Small group
Small group – small group with possibility to maintain a comfortable distance between the participants.
Reviews
Jennifer
Our guides were fantastic. We were a small group of middle aged ladies enjoy wine and the views. Our guide gave us great history about Porto and the things we saw. The views were fantastic. For those people who was the cruise experience, but want to avoid the party boats… this is your ticket. It was a lot of fun and a great way to end my trip to Lisbon.
Francisca
The welcome is very friendly with some explanations given by oceanographers on the most common species of dolphins in the region. The boats are recent and fast. The small tour towards the monuments of the city at the edge of the river (after having seen the dolphins for an hour!) gives a different view of this district. The team is cheerful and available to people. To do without hesitation!
Debolina
"The activity was a lot of fun and at the same time informative. The marine biologist as well as our skipper were both extremely well informed and friendly. We were lucky and got to see porpoises, common dolphins as well as bottle nosed dolphins and the weather was lovely.
Our teenage children wanted to repeat the activity immediately after instead spending time in the city :).
This is a must do activity regardless of whether you are travelling alone, with friends or with family. Suitable for young children as well.
Thank you for an amazing experience."
Alesia
This cruise was even better than we could have imagined! The captain was so knowledgeable and explained all of the city basically to us along the way down the beautiful river.
Paul
We did a morning tour and saw dolphins feeding, close enough they came to the side of the boat. Then we found a massive gyre of trash and stopped to remove it. It took both guides and several people on the tour to remove a ball of plastic trash. We were rewarded with a second sighting of dolphins after for cleaning up! Very nice boat, knowledgable guides!
Carmen
The best, the sunset on the river and the music during the tour. The boat is quite old and the variety of drinks is quite limited for the price you pay.
Amy
There was no guide… Service was a bit disorganized, but the snacks were better than I expected I was alone and felt like I was ignored by the drink server, as a result
Balraj
A fantastic way to end my time in this wonderful city. The guide was great; he allowed us to enjoy the boat ride and tranquility, while still guiding us through the points of interest along the way. The green wine was fantastic. Very good value for money in my opinion.
Cécile
Really nice ! To do with the children! Maria and Pascal (we think that's her first name! We don't have good Portuguese!) were really very friendly and created a great atmosphere!
Alex M.
Gorgeous little sail boat all to our group of 12. Such lovely crew. Will definitely book again.
Noa
We had amazing day! The guides were really nice and enthusiastic! I would absolutely recommend this trip :) Thank you so much, love from Noa and Lotte!!
Tammie
Fransisco was an excellent tour guide! He was extremely knowledgeable and I’d recommend him to anyone coming to Lisbon.
Kristin J.
I highly recommend the sunset cruise as it is an amazing way to see the city in the evening and the Lisbon cultural sights from water. The boat was immaculate and the crew very professional. It was a very unique experience with delicious tapas and high quality wine served onboard. It was a perfect romantic evening with spectacular views. Thank you for a night to remember!!
JĂĽrg
Super relaxed - great weather! Great evening atmosphere on the sea! A pleasant amount of good drinks and a fine aperitif.
Juliette
We loved it! The team was super nice and welcoming. We felt very special and the experience was memorable!
Manish
the experience was truly wonderful. we were able to watch dolphins as well as the super rare mink whale plus 4 of sun fish. so our day was truly made. The guide allowed the kids to come in front of boat to see the dolphins up close who had come next to boat. would definitely recommend to everyone
Shaheel
Absolutely fantastic experience! The boat trip on the Tagus River offered breathtaking views of Lisbon's iconic landmarks like the Belem Tower and the Christ the King statue. The crew was friendly, knowledgeable, and ensured a smooth sailing throughout. It's a must-do activity for anyone visiting Lisbon, offering the city's beauty from the water. Highly recommend!
André
A fun trip in a beautiful boat on the river! The views of the city were lovely, the information from the tour guide was nice, but he also paused for a good amount of time so that we could just enjoy being there. The Fado music was also and excellent touch
Michelle
Nice and relax way to go visit Belem. Very professional and friendly staff. Recommended for half day Belem visit.
Jacob
This trip was fantastic and was the highlight of our time in Lisbon. The staff were great and the drinks were very affordable. The music was great too. The trip was a lot of fun and is definitely worth doing whilst in Lisbon. Such great value for money.
Landy
The captains were really great ! They were nice and we had great conversations. I did wish we got to go swimming. Other than that we would do again!
Ollie
Amazing, Miguel and Ricardo were superb guides, lovely views, blankets provided and plenty room on the boat thank you so much
L S.
I LOVED this activity! It did not disappoint. I read a lot of reviews before booking this tour and was very impressed that it said 95% of the time, dolphins and other wildlife were sighted. Our boat driver was Francesco, and he handled the boat carefully and had some fun with us while driving. Our marine biologist guide was Vanessa and she was full of great information. We were very lucky and got to see a few different pods of dolphins, with babies and mamas. We heard our boat communicating with others as to where the wildlife was and that made it much easier for our boat to find the dolphins in the wild. I HIGHLY recommend this tour to everyone if you are into marine life, and seeing animals in their natural habitat.
Gemma
A great activity to end the day. Thiago and Victor very attentive and with great cultural knowledge. A very entertaining ride. 100% recommendable!
Jennifer
Our guides were fantastic. We were a small group of middle aged ladies enjoy wine and the views. Our guide gave us great history about Porto and the things we saw. The views were fantastic. For those people who was the cruise experience, but want to avoid the party boats… this is your ticket. It was a lot of fun and a great way to end my trip to Lisbon.
Francisca
The welcome is very friendly with some explanations given by oceanographers on the most common species of dolphins in the region. The boats are recent and fast. The small tour towards the monuments of the city at the edge of the river (after having seen the dolphins for an hour!) gives a different view of this district. The team is cheerful and available to people. To do without hesitation!
Debolina
"The activity was a lot of fun and at the same time informative. The marine biologist as well as our skipper were both extremely well informed and friendly. We were lucky and got to see porpoises, common dolphins as well as bottle nosed dolphins and the weather was lovely.
Our teenage children wanted to repeat the activity immediately after instead spending time in the city :).
This is a must do activity regardless of whether you are travelling alone, with friends or with family. Suitable for young children as well.
Thank you for an amazing experience."
Alesia
This cruise was even better than we could have imagined! The captain was so knowledgeable and explained all of the city basically to us along the way down the beautiful river.
Paul
We did a morning tour and saw dolphins feeding, close enough they came to the side of the boat. Then we found a massive gyre of trash and stopped to remove it. It took both guides and several people on the tour to remove a ball of plastic trash. We were rewarded with a second sighting of dolphins after for cleaning up! Very nice boat, knowledgable guides!
Carmen
The best, the sunset on the river and the music during the tour. The boat is quite old and the variety of drinks is quite limited for the price you pay.
Amy
There was no guide… Service was a bit disorganized, but the snacks were better than I expected I was alone and felt like I was ignored by the drink server, as a result
Balraj
A fantastic way to end my time in this wonderful city. The guide was great; he allowed us to enjoy the boat ride and tranquility, while still guiding us through the points of interest along the way. The green wine was fantastic. Very good value for money in my opinion.
Cécile
Really nice ! To do with the children! Maria and Pascal (we think that's her first name! We don't have good Portuguese!) were really very friendly and created a great atmosphere!
Alex M.
Gorgeous little sail boat all to our group of 12. Such lovely crew. Will definitely book again.
Noa
We had amazing day! The guides were really nice and enthusiastic! I would absolutely recommend this trip :) Thank you so much, love from Noa and Lotte!!
Tammie
Fransisco was an excellent tour guide! He was extremely knowledgeable and I’d recommend him to anyone coming to Lisbon.
Kristin J.
I highly recommend the sunset cruise as it is an amazing way to see the city in the evening and the Lisbon cultural sights from water. The boat was immaculate and the crew very professional. It was a very unique experience with delicious tapas and high quality wine served onboard. It was a perfect romantic evening with spectacular views. Thank you for a night to remember!!
JĂĽrg
Super relaxed - great weather! Great evening atmosphere on the sea! A pleasant amount of good drinks and a fine aperitif.
Juliette
We loved it! The team was super nice and welcoming. We felt very special and the experience was memorable!
Manish
the experience was truly wonderful. we were able to watch dolphins as well as the super rare mink whale plus 4 of sun fish. so our day was truly made. The guide allowed the kids to come in front of boat to see the dolphins up close who had come next to boat. would definitely recommend to everyone
Shaheel
Absolutely fantastic experience! The boat trip on the Tagus River offered breathtaking views of Lisbon's iconic landmarks like the Belem Tower and the Christ the King statue. The crew was friendly, knowledgeable, and ensured a smooth sailing throughout. It's a must-do activity for anyone visiting Lisbon, offering the city's beauty from the water. Highly recommend!
André
A fun trip in a beautiful boat on the river! The views of the city were lovely, the information from the tour guide was nice, but he also paused for a good amount of time so that we could just enjoy being there. The Fado music was also and excellent touch
Michelle
Nice and relax way to go visit Belem. Very professional and friendly staff. Recommended for half day Belem visit.
Jacob
This trip was fantastic and was the highlight of our time in Lisbon. The staff were great and the drinks were very affordable. The music was great too. The trip was a lot of fun and is definitely worth doing whilst in Lisbon. Such great value for money.
Landy
The captains were really great ! They were nice and we had great conversations. I did wish we got to go swimming. Other than that we would do again!
Ollie
Amazing, Miguel and Ricardo were superb guides, lovely views, blankets provided and plenty room on the boat thank you so much
L S.
I LOVED this activity! It did not disappoint. I read a lot of reviews before booking this tour and was very impressed that it said 95% of the time, dolphins and other wildlife were sighted. Our boat driver was Francesco, and he handled the boat carefully and had some fun with us while driving. Our marine biologist guide was Vanessa and she was full of great information. We were very lucky and got to see a few different pods of dolphins, with babies and mamas. We heard our boat communicating with others as to where the wildlife was and that made it much easier for our boat to find the dolphins in the wild. I HIGHLY recommend this tour to everyone if you are into marine life, and seeing animals in their natural habitat.
Gemma
A great activity to end the day. Thiago and Victor very attentive and with great cultural knowledge. A very entertaining ride. 100% recommendable!
Jennifer
Our guides were fantastic. We were a small group of middle aged ladies enjoy wine and the views. Our guide gave us great history about Porto and the things we saw. The views were fantastic. For those people who was the cruise experience, but want to avoid the party boats… this is your ticket. It was a lot of fun and a great way to end my trip to Lisbon.
Francisca
The welcome is very friendly with some explanations given by oceanographers on the most common species of dolphins in the region. The boats are recent and fast. The small tour towards the monuments of the city at the edge of the river (after having seen the dolphins for an hour!) gives a different view of this district. The team is cheerful and available to people. To do without hesitation!
Debolina
"The activity was a lot of fun and at the same time informative. The marine biologist as well as our skipper were both extremely well informed and friendly. We were lucky and got to see porpoises, common dolphins as well as bottle nosed dolphins and the weather was lovely.
Our teenage children wanted to repeat the activity immediately after instead spending time in the city :).
This is a must do activity regardless of whether you are travelling alone, with friends or with family. Suitable for young children as well.
Thank you for an amazing experience."
Alesia
This cruise was even better than we could have imagined! The captain was so knowledgeable and explained all of the city basically to us along the way down the beautiful river.
Boat Cruises & Tours in Lisbon
2-Hour Sunset Sailing Tour on a Luxury Sailing Yacht (Includes 2 Drinks)
Sail at dusk aboard a stylish yacht—enjoy two drinks per person and Portuguese cheese cubes as you glide past Lisbon's iconic sights under golden skies.
👉 Book now
2-Hour Sunset Boat Tour with Music & Drinks
Drift along the Tagus River at sunset—sip wine or beer, enjoy ambient music, and take in Lisbon’s illuminated skyline from the water’s edge.
👉 Book now
1- or 2-Hour Tagus River Cruise (Day, Sunset or Night)
Choose a sailing option to suit your mood—morning, daytime, romantic sunset, or night—and admire Lisbon’s landmarks from a luxury yacht/comfortable vessel.
👉 Book now
Frequently Asked Questions
What are some of the main sights that can be seen on a Lisbon boat tour?
A Lisbon boat tour offers a chance to discover Lisbon's highlights, such as Lisbon Cathedral, SĂŁo Jorge Castle, Monument to the Discoveries, Cristo Rei statue, and the 25 de Abril Bridge. The tour also provides a new perspective of the city, a fantastic view of the Atlantic Ocean, and a unique view of Lisbon's coastline.
What is included in a typical Lisbon boat tour?
A typical Lisbon boat tour lasts for 2 hours and may include highlights such as Cristo Rei, Lisbon Cathedral, and the 25 de Abril Bridge. The tour offers a fantastic view of the Atlantic Ocean and Lisbon's coastline. Additionally, full-day tours are available and may include cooking classes, visits to museums, and other destinations.
Is it possible to take a sunset tour on a Lisbon boat cruise?
Yes, a Lisbon boat tour offers sunset cruises that allow guests to experience the golden hour and enjoy the magical view of the city at sunset.
What is the best time to embark on a Lisbon boat tour?
Lisbon boat tours are available on Tuesdays, Wednesdays, Thursdays, Fridays, and weekends. Visitors can easily book the tour online or through Viator. It is recommended to book in advance to guarantee a spot.
Can families with children take a Lisbon boat tour?
Yes, Lisbon boat tours are suitable for families with children. It provides a chance to explore Lisbon's highlights, enjoy the beautiful view, and sip a bottle of beer or toast while passing by the landmarks.
What is the duration of a typical Lisbon river cruise?
A typical Lisbon river cruise lasts for 2-4 hours. The tour passes by several landmarks such as Cristo Rei, Lisbon Cathedral, and the 25 de Abril Bridge.
What landmarks can be seen from the South bank during a Lisbon boat tour?
The South bank offers a chance to discover Lisbon's highlights such as PadrĂŁo dos Descobrimentos, Belem Tower, and the Commerce Square. Additionally, guests can see plenty of spots arranged along the shoreline and have a privileged view of the Cristo Rei statue.
What is the significance of the 25 de Abril Bridge on a Lisbon boat tour?
The 25 de Abril Bridge is an iconic landmark in Lisbon, and the tour provides a unique view of the bridge from the river Tejo. The bridge connects Lisbon to the south bank and offers a fantastic view of the city's skyline.
Is it possible to cancel a Lisbon boat tour?
Yes, it is possible to cancel a Lisbon boat tour, but it's best to check with the tour operator for the cancellation policy. Some tours offer a full refund if canceled 24 hours before the tour's scheduled departure time.
Are there any restrictions on boarding a Lisbon boat tour due to COVID-19?
Lisbon boat tours have implemented safety measures to prevent the spread of COVID-19. The number of guests on each tour is limited, and masks are required onboard. Additionally, the boats are sanitized after each tour.