A non-profit organisation for the study and the conservation of the marine environment

Tethys is conducting internationally qualified scientific research aimed at the conservation of whales and dolphins since 1986.

The institute has been promoting the first citizen science projects on Mediterranean

cetaceans and offers not just whale watching, but exciting field courses for paying volunteers

wishing to help researchers at sea.

Expeditions to start in May


Both Tethys’ ongoing long term projects – CSR in the Ligurian sea and IDP in Greece – are citizen science projects. 2015 teams will go on until the end of September. Anyone can participate.


Befriend a sperm whale

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It’s a great present to someone you love – and you’ll support  research and conservation of cetaceans. Choose between one of the sperm whales of the Sanctuary.

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Best present ever!

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Offer a week among whales and dolphins to someone you love. The lucky ones receiving it  will be able to  choose their dates and their destination.

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Students’ workshop


A team in May will be specifically dedicated to University students willing to gain experience in research techniques.



A series of best pictures regarding Tethys' ongoing long term research projects conducted in the Mediterranean which you can join: CSR in the Pelagos Sanctuary, Ligurian Sea on board the RV "Pelagos", and IDP in the coastal waters of Greece.

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Recent updates

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New paper from the IDP

Thursday November 20th, 2014

The population of bottlenose dolphins (Tursiops truncatus) in the Gulf of Ambracia  in Greece, has been studied by researchers from Tethys’ Ionian Dolphin Project (IDP) since 2001. In this area.. read more

Tethys’ megafauna in London, 18 November

Thursday November 13th, 2014

The new travelling exhibition of big-animal protraits called Megafauna will be at London Sealife Centre’s Ocean of Stars event; in aid of Tethys, it features the work of underwater photographers.. read more

(Italiano) Segnata da un’elica…ma viva dopo 4 anni

Monday November 10th, 2014

Sorry, this entry is only available in Italiano.

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