Boat Tour in Marseillan and on the Thau Lagoon

Boat tour and visit to the oyster beds in the Bassin de Thau (Hérault, Occitanie). Regular departures. Check the schedule for upcoming departures.

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Official logo of L’Étoile de Thau IV – visual identity for boat tours in Marseillan, guided cruises on the Thau Lagoon, water-based tourism, and exploration of the shellfish farming heritage

A Family Story

“We are a family-owned company founded in 1997 with roots in the fishing and shellfish farming industries in the Thau Basin. Our passion is to help people learn about our professions and our field.

Whether you’re on vacation or celebrating a birthday, a company outing, a cultural trip, or something else…
Our boat cruises on the Thau Lagoon in Marseillan are sure to meet your expectations. To ensure that children of all ages enjoy the experience, we provide educational materials and a tailored commentary, which earned us the “Famille Plus” certification in 2024.

The crew of this family-owned business welcomes you aboard!

A Getaway to the Thau Basin

Boat Ride

Enjoy this authentic boat cruise on the Thau Lagoon and savor our delicious oysters along with local cookies (Zezettes de Sète).

UNESCO World Heritage Site

Discover the source of the famous Canal du Midi, a UNESCO World Heritage Site.

Oyster beds

Sail through the oyster beds of the Thau Lagoon. You’ll learn everything there is to know about shellfish farming on this excursion!

Rent the boat privately

For an unforgettable experience:
Charter the boat

For all your events:
Weddings, Birthdays, Bachelorette/Bachelor Parties, Retirement Celebrations, etc.

Want to relax for a bit?

So don’t wait any longer… hop aboard the DIANE 1 and enjoy a cruise on the Thau Lagoon!

Customer Reviews

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Alexandre FABRE

We had a great time with an amazing team! The tour was accompanied by some very interesting commentary. The little tasting was really enjoyable—I highly recommend it. See you soon for our next outing.

Stars icon – an image representing a positive rating or a 5-star customer review for L’Étoile de Thau IV, cruises in Marseillan, a high-quality tourist experience on the Thau Lagoon in Occitanie

Keti LASCARAY

We had a lovely afternoon and learned a lot; it’s suitable for all ages. Thank you so much for the wonderful afternoon you gave us.

Stars icon – an image representing a positive rating or a 5-star customer review for L’Étoile de Thau IV, cruises in Marseillan, a high-quality tourist experience on the Thau Lagoon in Occitanie

Jenny VIEULES

I highly recommend this boat tour of the Thau Basin—not only for exploring and learning about the area, but also for the warm welcome, the expertise, the hands-on experience, and the fact that it’s all delivered with a smile by a top-notch crew!!! I highly recommend it.

Stars icon – an image representing a positive rating or a 5-star customer review for L’Étoile de Thau IV, cruises in Marseillan, a high-quality tourist experience on the Thau Lagoon in Occitanie

Sandrine DELSARTE

It was so much fun—we absolutely loved this boat tour. The welcome was warm, the crew was fantastic, and the guide was great. A must-do—way to go, girls!

Seen on TV!

TF1 Logo – illustration of a television segment or news report aired on TF1 about L’Étoile de Thau IV, sightseeing cruises in Marseillan, and the promotion of local heritage on the Thau Lagoon
France 2 logo – image used to illustrate a television broadcast or news report on L’Étoile de Thau IV, boat tours in Marseillan, national visibility, and the promotion of tourism on the Thau Lagoon
France 3 logo – image used to indicate a news report or television broadcast about L’Étoile de Thau IV, boat tours in Marseillan, local tourism on the Thau Lagoon, and media coverage in Occitanie

We have appeared on the following television shows:
“Des racines et des ailes” on France 3 on November 14, 2012
“C’est au programme” with Sophie Davant on France 2 on April 28, 2014
“Bienvenue chez nous” on TF1 on November 15, 2016.
“Aux informations” on TF1, hosted by Jean-Pierre Pernaut at 1:00 p.m. in August 2018
“Le journal de 13h” on France 2, in a segment on seahorses featuring Patrick Louisy on May 10, 2019
“Bienvenue chez nous” airs for the second time on TF1 on October 8, 2019
“Reportages & Découverte” on TF1 on January 18, 2020
“Summer at 8:30 p.m. on Saturdays” on France 2 on August 1, 2020
“Météo à la carte” on France 3 on April 24, 2023

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