We meet at our boat, in front of the restaurant "Le Carré Rouge" (Quai Jean Miquel, 34300 Cap d’Agde)
• Catamaran with glass-bottom compartments for underwater observation
• Views of Fort Brescou, an island on a submerged ancient volcano
• Admire volcanic cliffs and Grande-Conque's black sand beach
Discover the underwater world with our glass-bottom catamaran trip from Cap d'Agde! Our journey begins from the bustling port of Cap d'Agde, where you will board a spacious catamaran equipped with four glass-bottom compartments. These unique features allow you to explore the marine life in a truly original way.
Our first highlight is the island of Fort Brescou, built on the submerged part of an ancient volcano. This historical site is perfect for those interested in history and geology. We will then head to the rocky coast of Cap d'Agde, where you can admire the stunning volcanic cliffs and the unique black sand beach of Grande-Conque. The tour continues past the rocks of "Les Deux Frères". The catamaran offers an even more impressive view thanks to its powerful underwater night lighting. Please note that while we strive to provide the best experience, the visibility of the underwater world and fish is not guaranteed.
We meet at our boat, in front of the restaurant "Le Carré Rouge", 30 minutes before departure. If you come by car, you will find free and paid parking nearby.
Name of the boat: Cap Nemo
Catamaran
Number of passengers: 151
Sun-protected area
Wheelchair-accessible toilets (manual wheelchairs only)
Suitable for children of all ages, pregnant women and the elderly
Sunscreen, sunglasses and hat
Windbreaker
Accessible to strollers
Not accessible to manual wheelchairs
You are allowed to bring your own drinks and snacks
If bad weather forces the provider to cancel the activity, you’ll receive a full refund or have the option to reschedule
Dogs allowed if kept on a leash
Viewing of the seabed and fish is not guaranteed 100%; n the event of unforeseen weather changes resulting in poor visibility, no refunds will be issued
This glass-bottom boat tour is a huge hit with families, with around 88% of reviewers giving it five stars. The crew receives constant praise for being "fantastic and very friendly," and is noted for being very accommodating. The underwater viewing is a major highlight for children. While a few guests wished for more than one viewing stop, the overall experience is described as a fascinating and comfortable trip, perfect for all ages.
AI generated from the text of customer reviews
A lovely walk with excellent explanations. We were able to see the seabed with small fish. The view of the magnificent sunset was incredible. The only downside is that the walk is really short at one hour, considering the stops to observe the fish and the round trip.
A video showing the best footage of the underwater excursions filmed during the return trip would be a nice addition to the portholes. The crew was very friendly.
Super friendly staff, very helpful and smiling.











