Skip to content


SWP charter logo

Observation of cetaceanswhales, dolphins and sperm whales in Biarritz, Basque CountryA small group, maximum 9 passengers. A more intimatesofter, in conscienceShare the experience!

From April to November, we go out to sea on the Basque-Land coastOne of the most beautiful places in the world to be a tourist.Cetacean, dolphin and whale watching, of which some twenty species are present. The Gouf of Capbreton where we sail is a  It is an underwater canyon that offers all the nutrients necessary for the development of marine fauna. This is why there are so many cetaceans in the area, and it is a place where birth for the dolphins.

We're going out day-to-dayin the morning at 9am. We are at sea for about 4 hours.

The departure is from the Quai Pedros in Bayonne, opposite the Town Hall, at the foot of the ramparts, 50 metres from the Place Charles de Gaulle car park.


We are not tourism professionalsAs researchers, we welcome you on board to share our experience.

We are a association under the law of 1901, recognised as being of general interest for its scientific research on cetaceans and its environmental actions in the marine environment.

Our guide Franklinformed by Pierre Lavagne de Castellan will take you to meet the cetaceans off the coast of Biarritz, on the Gouf de Capretonusing the approach techniques of the Shelltone Whale Project. You will then benefit from our experience, both to put all the chances on your side for cetacean watchingthat they are certain to be able to do so in the respect that is due to them.

We are setting up a geo-referenced database and acoustics of all cetaceans encountered during our trips from Biarritz.

Your participation in our sea trips helps to finance our research in inter-species communication. We only take on board people who are in a good mood. Take a look at the animals we are currently seeing by clicking on the button below.

Participation in the costs of a half-day sea trip:

  • 80 Euro per person

Book your sea trip in Biarritz, Basque Country

Hello everyone, friends of the oceans!

We now use an automatic calendar for bookings, it is much easier for you to see our availability, it avoids mistakes and saves us a lot of time, which allows us to spend more time at sea among the animals we love and study.

Thank you for your understanding.
Pierre Lavagne de Castellan

1 - Click on the date of your choice
2 - Validate the number of adults and children.
3 - Payment is made online either by credit card or via a Paypal account.
4 - You will immediately receive your boarding ticket by email.

Any questions? Read our FAQ below. Thank you and see you soon!


Payment by credit card 100% secured on this site.


You did not find the answer to your question? Do not hesitate to contact us by e-mail by going to this page CONTACT.



Franklin, a Basque-Breton captain, has always let himself be carried by the ocean. His grandfather passed on to him his deep passion for the sea, and he was already sailing alongside him before he was even old enough to remember.

After becoming a sailor, the sea took him to the four corners of the world to live out his most beautiful adventures. From Ireland to the Caribbean, he has worked on all kinds of ships.

His knowledge of and respect for cetaceans and his encounter with the Shelltone Whale Project have led him to become involved in their study and protection at home in the Basque Country.


The dolphins of Biarritz in the Basque Country love to play with the bow of the boat, we just have to adapt our speed to their rhythm.


Welcome aboard our boat, typical of the Atlantic coast, spacious and comfortable, very seaworthy, it allows you to approach the cetaceans of the Gouf de Capbreton in front of Biarritz in the Basque Country gently and respectfully. 


Our captain, Franklin in his work in Bali, to know the cetaceans you have to understand and share their element.


Dolphins, sperm whales, pilot whales, are numerous to come to swim in the Gouf of Capbreton, in front of our base of Biarritz where we sail.

The Shelltone Whale Project has set up a cetacean approach protocol, which is applied to each sea trip among the whales, dolphins and sperm whales of the Gouf de Capbreton in Biarritz.
Our observation protocol is governed by simple principles:

  • Our daily trips to the sea to carry out our research have enabled us to establish a climate of trust with the local people over time. whales, sperm whales and dolphins in Biarritz who alone decide on interaction with humans, in a calm, serene atmosphere.

  • On each trip, we use our hydrophone (underwater microphone) and decipher the sounds heard in the sea, whale songs, sperm whale codas, dolphin whistles and pilot whales from Biarritz. These sounds, heard live, allow us to decide on the orientation of the boat to give us the best chance to observe the animals.

  • A unique experience, a scientific, ecological and pedagogical approach, based on the principles of non-intrusion, mutual respect of the dolphins, sperm whales and whales of Biarritz.



A sperm whale sounding out...


Dolphins in peace...


A sperm whale, just before it goes into the depths to feed...


A fit dolphin... free.



Recorded 10 miles off Baille Argent on 26 April 2016. We are convinced that there is a message in this song. Enjoy your listening!



Do not hesitate to contact us