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Experience dolphin watching in Sesimbra with a marine biologist, exploring stunning coastlines and swimming at wild beaches on this 3-hour tour from Lisbon.

This 3-hour dolphin watching tour departs from Diving center Megadive in Sesimbra, Portugal, offering an engaging experience led by a marine biologist. With an impressive rating of 4.7 out of 5 from 7 reviews, this excursion is praised for its high success rate of spotting dolphins—about 98%—and the chance to explore the scenic Arrábida Natural Park.
The tour combines wild dolphin sightings, coastal sightseeing, and beach swimming, making it a versatile adventure ideal for families, nature lovers, and wildlife enthusiasts. The experience runs from April 1st to October 31st, aligning with the dolphin season. Travelers should be prepared for a 3-hour journey, with opportunities for stunning photos and relaxing beach breaks, though they should keep in mind that wild animals can sometimes be elusive.
You can check availability for your dates here:
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The tour begins at Diving center Megadive, where you meet at 9:45 am. The meeting point provides easy access for those staying in Lisbon or nearby areas. The check-in includes a safety briefing and a short boat cruise to set off along the coastline.
Comfortable shoes and light jackets are recommended for the safety briefing and boat ride, while brought swimwear, towels, sunscreen, and comfortable clothes prepare you for the beach stops ahead. The departure is well-organized, and the boat is designed to offer excellent views of the dolphins and the surrounding scenery.

The boat cruise traverses the Professor Luiz Saldanha Marine Park, an area rich in marine biodiversity. This park provides ideal conditions for dolphin sightings, with its abundant sea life and protected waters. The scenic route offers a splendid perspective on the Sesimbra coast and the Arrábida Natural Park backdrop, making for picturesque photos.
The tour includes stops at notable points such as CV7Q+XV, CR6Q+WV, Baleeira Beach, and Ribeiro do Cavalo Beach. Each stop features photo opportunities and guided explanations about the natural landscape and marine environment, with some stops including swimming and enjoying local treats.
The CV7Q+XV stop offers a 30-minute break with a chance to swim in the clear waters and take photos of the magnificent coastline. Similarly, Ribeiro do Cavalo Beach provides a 20-minute chance to enjoy a beach break and swim in wild, pristine waters.
The Baleeira Beach stop is brief but offers a distant view of the natural beauty of Sesimbra’s beaches. Each location is chosen for its scenic value and opportunities for relaxation or photo capturing, making the tour a well-rounded experience.
More Great Tours NearbyThe core of this tour is the dolphin sighting experience. Traveling through the marine park, the boat targets locations where dolphins are most likely to be observed. The expert knowledge of the marine biologist guide enhances the experience, explaining dolphin behaviors and the importance of respecting their natural habitat.
Although dolphin sightings are not guaranteed, the tour boasts a 98% success rate, thanks to the guide’s experience and understanding of the sea conditions. Guests can expect to see local dolphins frolicking in the waves, often close enough for stunning photos.
A key feature of this tour is the swimming stops at Ribeiro do Cavalo Beach and CV7Q+XV. These beaches are described as paradisiacal and wild, offering a rare opportunity to cool off in the sea away from crowded tourist spots.
Participants are encouraged to bring swimwear, towels, and sunscreen to enjoy these moments fully. The stops are short, about 20 to 30 minutes, but enough time to relax, take photos, and enjoy some local Sesimbra sweets.

This tour emphasizes family-friendliness and accessibility. It is suitable for children, including infants as young as 15 months, based on positive reviews. The boat and facilities are wheelchair accessible, making this a comfortable outing for guests needing mobility support.
The guide maintains a friendly, engaging approach, which makes the experience enjoyable even for younger guests. The overall pace is relaxed, allowing everyone to take in the scenery and wildlife comfortably.

Booking is flexible, with options to reserve now and pay later. Guests can cancel free of charge up to 24 hours before the scheduled start, offering peace of mind for flexible plans. The tour is 3 hours long, with multiple available starting times, so travelers can choose what suits their schedule.
Participants should bring comfortable shoes, swimwear, towels, sunscreen, and light clothing for the day. The tour explicitly advises against littering or touching marine life to protect the environment.

Mega Dive has been operating this tour in Sesimbra, bringing years of local knowledge and experience. Their high success rate in dolphin sightings demonstrates their familiarity with the best spots and sea conditions. The guides speak Portuguese, English, and French, ensuring clear communication for international guests.
This dolphin watching tour offers a balanced mix of wildlife viewing, coastal scenery, and beach relaxation. The expert guidance from a marine biologist enhances the experience, making it educational as well as fun. The high success rate of dolphin sightings and the opportunity to swim at wild beaches are significant draws.
While dolphins are wild animals, the tour’s well-organized route and knowledgeable guides make sightings highly likely. The inclusion of scenic stops and family-friendly features makes it suitable for a broad audience. The three-hour duration fits well into a day of exploring Portugal’s coastline without feeling rushed.
This tour is most appealing for those eager to see dolphins in their natural environment while enjoying the stunning views of the Arrábida coast. The opportunity to swim at wild beaches adds a memorable touch to the experience.
The accessible and flexible booking options, combined with positive reviews praising the scenic landscapes and friendly guides, make this tour a dependable choice for families, couples, and solo travelers alike.
Is the dolphin sighting guaranteed?
No, but the tour has about a 98% success rate based on local experience and sea conditions.
What should I bring for the tour?
Bring comfortable shoes, swimwear, towels, sunscreen, and light clothing for the beach stops.
Can children participate?
Yes, children of all ages are welcomed, and the tour is suitable for families, including infants.
Is the tour accessible for wheelchair users?
Yes, the tour is wheelchair accessible, ensuring everyone can enjoy the experience.
What is the best time of year for this tour?
The dolphin season runs from April 1st to October 31st, when sightings are most likely.
How do I book or cancel?
Guests can reserve online with the option to pay later and cancel free of charge up to 24 hours before departure.
This Sesimbra dolphin watching tour combines expert guidance, wildlife encounters, and beautiful coastal scenery, making it a rewarding experience for those seeking a genuine connection with nature in Portugal.
You can check availability for your dates here: