ClearBoat Tour: Transparent Seas of Portugal

Discover Portugal’s first ClearBoat tour in Sesimbra. Sail transparent waters, explore hidden beaches, and connect with marine life intimately.

Duration: 1 hour, 30 minutes
Cancellation: 24 hours
Highlights
  • Ribeira do Cavalo Beach - Cruise along the Sesimbra coastline and pause for a swim near Praia Ribeiro do Cavalo, regarded as one of Sesimbra’s treasures.
What's Included
  • Bottled water
  • Life vest
What's Not Included
  • On-board WiFi
  • On-board restrooms
Additional Information

Experience a groundbreaking adventure in Portugal with ClearBoat, the country’s first fully transparent boat tour.
Setting sail from Sesimbra’s Harbour, this coastal journey takes you through breathtaking landscapes, reaching beautiful spots like Praia do Ouro and Praia do Ribeiro do Cavalo. During the tour, there will be opportunities to swim, unwind,…

Location
Rua Clube Naval de Sesimbra 263
Rua Clube Naval de Sesimbra
Meet us in Sesimbra Harbour: enter the main pier where all the boats are and get to the white entrance.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
5.0
(49 Ratings)
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Trip49788814088
Aug 2, 2025
I recommend! - Amazing tour, the Peter is a super helpful guide, wonderful landscape and an experience that is worth it! Catching good weather, makes everything more spectacular
Review provided by Tripadvisor
Telmoc499
Aug 1, 2025
Unique experience on the transparent boat – 5 stars! - Fantastic experience aboard the transparent boat! We made the tour on the transparent SeaTru boat and it was simply amazing! The experience exceeded expectations — from the stunning views to the unique feeling of sailing on a boat with transparent background. Marcelo and Diogo were tireless: super helpful, friendly and always ready to answer any questions with good will. They made us feel completely at ease and contributed a lot to making the tour even more memorable. I highly recommend visiting the area — it is a different, quiet and perfect activity for those who want to enjoy the sea in an original way.
Review provided by Tripadvisor
Mafmoutinhoreviews
Jul 29, 2025
Best Activity to Do in Sesimbra/Praias da Arrábida - Very interesting this concept from Seatru with the boats 100% transparent: boat, kayaks etc... But what I liked the most was: *Pre-event communication with all the necessary information for those such as I did not know Sesimbra * Total feeling of safety on board, humility of the staff and customer attention during the trip. * Staff efforts to ensure that the visibility conditions on the boat floor are not disturbed (passengers are not allowed to enter with sand in their feet...) *I noticed that the two children on board delirated with the experience ---> reminded me of the most beautiful curiosity that we can still carry inside us in our relationship with nature... so I think it is a more than mega recommended activity for those who have children... want to even something pedagogical (we saw Portuguese caravelles etc...) *I liked that they allowed the passengers to dive into the crystal clear waters of Arrábida without rush, everything very quiet!! *I appreciated having fresh water on board because in my opinion shows care with the customer ... And finally the guides were impeccable and good wave and honestly that's what I most value I just want to go back!!
Review provided by Tripadvisor
Ritahlopes
Jul 24, 2025
- I expected this to be very fun (a fully transparent boat, what's not to love?). But it wasn't just fun, it was fantastic! It totally exceeded my expectations. Marcelo and Inês were so welcoming and friendly. They passionately told stories about the surroundings, species, the natural reserve, legends and memories. You can really feel the amount of love they have for this stunning part of Portugal. They're super easy to talk to, and they love to answer any questions you might have. Of course the boat itself is super cool - as expected. You can see fish, rock formations and the occasional swimmer underneath the boat. If you have people on board that dare to dive underneath ;). After the boat trip, Marcelo and Inês recommended the best place in the area to eat fresh fish and the best spot to catch the sunset. I told them I'd be back for sure, and I intend to bring more friends to this lovely boat.
Review provided by Tripadvisor
Go04090168477
Jul 23, 2025
Fantastic Experience - Fantastic experience with proper monitoring and monitoring! A different boat tour, unavoidable by the maritime visual context but also by the perspective that the boat itself offers, with space for the desired diving! Something worth experiencing and that leaves a memorable good vibe! PS: The kids loved To repeat, no doubt!
Review provided by Tripadvisor
Patrícia
Jul 23, 2025
Wonderful! I recommend and will do it again. - I walked in the transparent boat of Seatru on July 14 and it was simply amazing! The experience exceeded all my expectations. The boat is spectacular, gives a unique feeling of being in direct contact with nature. The surrounding landscapes are beautiful, breathtaking. I couldn't ask for a better setting for a special day. In addition, the team was super friendly, friendly and attentive from start to finish, which made everything even more special. It was really a different birthday and a lot of fun, full of good memories: from the grapes and the cake with cinnamon, through the diving in the sea of crystal clear water, to the playlist chosen for the tour's ambient music. I recommend without hesitation for those who want something original, relaxing and with that touch of magic of Arrábida.
Review provided by Tripadvisor
Voyage32331027200
Jul 23, 2025
Divine! - We made this transparent boat ride in Sesimbra and it was simply spectacular! The crystal clear waters of the region seen from the bottom of the boat create a unique connection with nature — which I highly recommend to those who visit the area. From the beginning, we felt an excellent energy from the whole team. The workers were super friendly, helpful and created a very pleasant environment throughout the tour. I want to leave a special thanks to Marcelo, who was impeccable from the first contact. The communication was clear, fast and super professional. We felt very well received, which made all the difference. Without a doubt, a memorable experience that we will repeat again!
Review provided by Tripadvisor
Q2479ltsofiaf
Jul 22, 2025
Incredible experience to repeat!!! - We love the experience we have with Seatru. We were in family and highly recommend this tour! The team was 5 stars and super attentive. It is to repeat without doubt!
Review provided by Tripadvisor
Manuelf3092
Jul 22, 2025
Very positive experience - Very positive experience, trip carried out with all the attention and good vibes. The two crew members were very friendly and made the trip very pleasant.
Review provided by Tripadvisor
Travel64468329228
Jul 20, 2025
Excellent tour of the best in Sesimbra without a doubt - It is an experience to repeat, the Marcelo and Inês are very friendly, always available to create a good atmosphere aboard the transparent boat.
Review provided by Tripadvisor
From $76
up to 12 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).