New diving programme by Oceanário de Lisboa!

Would you like to try diving or snorkelling in the beautiful waters of Sesimbra? Let yourself be immersed in nature with the new diving programme by Oceanário de Lisboa!

The Oceanário challenges you to discover the underwater world, diving or snorkelling, with an unparalleled experience in the wonderful waters of Sesimbra. Whether it is your first or fifteenth time, the amazing biodiversity of the Portuguese coast ensures that each dive is a unique moment.

Enjoy an immersive experience in direct contact with the marine environment, while contributing to conservation through involvement in citizen science.


  • Diving trip* in Sesimbra with briefing and debriefing on biodiversity
  • Diving equipment
  • Experience accompanied by a diving instructor or guide
  • Digital guidebook with information on local habitats and species

*Certified divers must present their certification.

| Experience available on Sundays, from 1 March to 31 October, by prior reservation (minimum 48 hours in advance).
| Cancellations or changes must be made at least 48 hours in advance.
| Activities are subject to weather conditions, safety issues and minimum number of participants.

Certified dive: start at 9h00 (duration 3 hours)
Try dive and snorkeling: start at 14h00 (duration 3 hours)

Meeting point at Nautilus Sub, Porto de Abrigo- Avª Naufragos, 2970-152, Sesimbra;
GPS coordinates: N 38º 25,900’ W -009º 07,460’.

From 10 years old and up.

Certified dive: 65€ per person (min. 4 pax | max. 12 pax)
Try dive: 85€ per person (min. 2 pax | max. 4 pax)
Snorkelling: 35€ per person (min. 4 pax | max. 12 pax)

About Oceanário de Lisboa
Recognized three times as "the best aquarium in the world" by Tripadvisor's Travellers' Choice, the Oceanário de Lisboa is a place that brings the ocean to the city through the nearly 500 marine species that inhabit it. The Oceanário's mission is to encourage visitors to learn more about the ocean, making them aware of their responsibility in conserving our natural heritage by changing their behaviour towards a more sustainable society.