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

Tethys has contributed since 1986 to marine conservation, at national and international levels, through the provision of scientific knowledge.

The Institute has been investigating the ecology of marine species,

most notably whales and dolphins, in research campaigns involving paying volunteers,

that are among the earliest citizen science projects in the Mediterranean.

Join us at sea! Everyone can participate.



JOIN US  in Greece


IDP teams in Greece will be going on until the end of September: please check out the dates and fees for 2016. For those interested in participating all detailed info is available.



JOIN US  in Italy

fin whaleCetacean Sanctuary Research teams in the northwestern Mediterranean will go on until September:  dates and fees for 2016 are on line. Cruises start every monday from Sanremo. See also all detailed info.


Last minute offers

last minute offer-1Teams IDP 13 (4th -10th September) and 15 (18th – 24th Sept.) in Greece and CSR 17 (5th -11th September) and 18 (12th -18th Sept) in Italy still have places available at a last-minute fee (see IDP, CSR). Please email tethys@tethys.org or contact us

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Tethys turns 30

Tethys Research Institute 30 years logo

Read the highlights of Tethys’ activities in research, conservation and awareness, from 1986, under the menu “Activities“, or the special summary in ITALIANO

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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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(Italiano) Mante e mobule in edicola

24 August 2016

Sorry, this entry is only available in Italian.

Highlights from CSR 14 (August 15th – 21st)

It was Monday night, the first day, and we were sitting in a restaurant talking about the animals we could see in the coming week: striped dolphins, sperm whale, turtles….. read more

Highlights from CSR 13 (August 8th – 14th)

17 August 2016

“ “Blow!” – that’s how last week started: two sperm whales on the first day! On the same day we also spotted a nice group of more than 30 bottlenose.. read more