Caretta-caretta nesting season started in Rethymno (Crete)!
Itʼs well known that Crete hosts three very significant caretta nesting beaches in Rethymno, Chania and Messaraʼs Bay. Although these areas are critical for the Mediterranean sea and a major part of them has been included in the NATURA European network of protected areas as should, they still remain with no legal protection status facing a number of threatening to their future issues.
Creteʼs caretta nesting beaches have been downgraded enough because of the uncontrolled tourist development during the 80s and 90s. The sand dunes face destruction as they are at a large scale being rapidly eroded, and finally the beach is almost disappearing.
The large number of beach umbrellas and reclining chairs that are left on the beach at night impede the slow travel of the female turtles as they make their way up to the dune line to nest. The bright artificial lights are fatal for hatchlings as they become confused and disoriented.
At the same time, a greater threat comes from the sea, since each year many sea turtles are reported dead or injured, mainly due to inadvertent capture in fishing lines and nets.
After all, it is not that strange the number of nests in Rethymno and Chania is declining, stressing the imperative need to take all appropriate measures for their protection immediately.
The importance of the turtles laying beaches in Crete has been established beyond any doubt. ARCHELON has been working systematically in Rethymno since 1989 collecting nesting data, protecting the nests threatened and informing the public.
The field work is conducted with the permission of the competent Ministry of Agriculture and the support of the local authorities and municipalities, by trained volunteers who come particularly for this purpose from around the globe.
ARCHELON jointly with the Municipality of Arkadi reconstructed the old school building in Pagkalohori and turned it to a Nature Information Centre, hosting appropriate environmental learning programs for schools and organized groups.
Please note the sea turtles reproducing in Rethymno, Chania and in the Bay of Messara each form a particular and independent population not related to the ones of Zakynthos and Kyparissia. We were able to document this thanks to our long term tagging program.
Remarkably, marine turtles from each region, even if they make long journeys for feeding reasons up to the North Adriatic Sea and Tunisia, the adult females return back to their own hatch site to lay their own clutches of eggs.
It is important to address the threats to sea turtles and the natural habitats upon which they depend. ARCHELON has been doing exactly that for more than 25 years now. With your help we can do more.
Your support will help us ensure sea turtles are swimming free in the sea for future generations!
Marathonisi in Zakynthos: a special nesting beach
The very first caretta caretta nest in the Bay of Kyparissia for 2009!
RECENT NEWS
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The lecture turned into reality: A real turtle rescue for the students from Kallithea!
The students spotted a sea turtle floating in the water right after their educational tour of the ARCHELON Rescue Centre and immediately notified the rescuers.
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Filming of the LIFE MareNatura documentary is completed
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- OUR NEWS23/10/2025
ARCHELON participates in the "Science Festival 2025 – The Voice of the Ocean"
The French Institute of Greece is organizing a celebration from 10 to 27 November 2025 dedicated to science and the ocean! World premiere of the LIFE MareNatura documentary on November 13th.
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In 2025 approximately 6,100 nests were recorded, marking a 74% increase compared to the average of the previous 12 years!
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We bid farewell to a devoted environmentalist and friend, Yiannis Roussopoulos.
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Jane Goodall’s words still warm our hearts
Thank you, Dr. Goodall, for all that you have taught us and for the life example you have left behind.
- OUR NEWS29/09/2025
Turtles, Dolphins, and Birds: Local Communities and Scientists come together for the future of Amvrakikos Gulf
A one-day conference held on Wednesday, September 24, in Menidi, Amfilochia, united the voice of the local community with leading scientists and environmental organizations for Amvrakikos Gulf.
- OUR NEWS26/09/2025
Biologists from the 'LIFE ADAPTS' project send their message to the community
- OUR NEWS23/09/2025
Aquila Rithymna Beach Hotel becomes an Advocate for ARCHELON in Rethymno
The hotel's generous donation directly supports the costs of conservation activities during the 2025 and 2026 nesting seasons.
- OUR NEWS19/09/2025
A Season of Success for the Amvrakikos Project
The 2025 field season for ARCHELON's Amvrakikos project has officially come to a close!
- OUR NEWS12/09/2025
Τhe first green sea turtle nest has hatched in Naxos island!
The emergence of a nest on Naxos is a sign that the geographical range of this threatened species in the Mediterranean may be expanding.
- OUR NEWS09/09/2025
School Tours at ARCHELON: Reserve Your Spot from September 11
The magical world of sea turtles and the people who are taking care of them is waiting, offering you a unique experience and valuable knowledge.
- OUR NEWS05/09/2025
The first report of 2025 delivered from Romanos Beach, Messinia
From mid-May to early September 2025, the project recorded about 80 nests along the 2.7 km stretch of Romanos beach.
- OUR NEWS29/08/2025
Turtle Run in Chania: Lace up your running shoes and get ready!
September 7th, Chania: Join the event and support the protection of one of the most iconic marine species in the Mediterranean.
- OUR NEWS27/08/2025
Citizens Help us Map Sea Turtle Sporadic Nesting in the Ionian Sea
This study is particularly important as it highlights the power of citizen science. Public eyes on beaches, outreach through online platforms and new reporting tools are expanding our understanding of turtle nesting beyond the beaches we monitor.

