Fieldwork at the beach of Preveza
The last ARCHELON mission for 2020 was completed a couple of days ago at the beach of Preveza, in western Greece. More than 15 loggerhead nests have been recorded there, from Kastrosykia to Mytikas, during the last 4 summers.

Unlike other organisms that have their sex determined genetically, the sex of the loggerhead hatchlings is determined by temperature. This phenomenon is observed in most species of turtles, crocodiles, many fish species and lizards.
The ratio of male/female hatchlings depends on the range of temperatures inside each nest and it is different in each nesting area of Greece. Lower temperatures in the nest favor male hatchlings while higher temperatures favor female ones. Determining this ratio is vital for any population analysis, especially so for the future survival of this species in the face of climate crisis.

Next comes the analysis of data, which will be done in the upcoming months. Until then, stay safe!
Big loss after 28 years of active reproduction
The Green Fund co-financed the Zakynthos project for the first time
RECENT NEWS

- OUR NEWS23/10/2026
ARCHELON's Virtual Tours Return for the 2026–2027 School Year!
A new school year filled with knowledge, creativity, and sea turtles is about to begin! Bookings for ARCHELON's virtual tours open on Monday, October 26, while the first tours will take place on Monday, November 2, 2026.
- OUR NEWS21/10/2026
Incident on Polyaigos Island: ARCHELON Calls on Authorities to Investigate the Death of a Sea Turtle
- OUR NEWS14/10/2026
The examinations behind every diagnosis: A vital step in sea turtle rehabilitation
This is where diagnostic examinations play a crucial role. X-rays are an invaluable tool for our rehabilitation team, both upon admission and throughout the recovery process, helping us determine the appropriate treatment and monitor each turtle’s progress.
- OUR NEWS09/10/2026
“Guardians of our ancient sea”: The 8th Mediterranean Conference on Marine Turtles takes place in Greece
The conference is expected to host 240 delegates from 20 Mediterranean countries, including leading researchers and scientists, as well as representatives from protected area management bodies and environmental organizations.
- OUR NEWS06/10/2026
A Wildlife Weekend at the Museum
On the weekend of October 3rd and 4th, ARCHELON participated in the "Wild Weekend", a two-day celebration dedicated to wildlife at the Goulandris Natural History Museum.
- OUR NEWS01/10/2026
October for sea turtles: Help us care for our sea turtle patients this winter
This October, we are launching a fundraising campaign with one clear goal: to raise €5,000 to support the care of our sea turtle patients through the end of 2026.
- OUR NEWS25/09/2026
Together for Crete’s nesting beaches: "Turtle-Friendly Hotel" award ceremonies in Chania and Rethymno
ARCHELON hosted the award ceremonies for the new Turtle-Friendly Hotel certification, as part of the TUI Turtle Aid Greece program in Crete.
- OUR NEWS23/09/2026
We bade farewell to Omiros, the blind sea turtle that traveled from Greece to Cornwall
In September 2026 Omiros, a male Loggerhead sea turtle with a remarkable story, passed away. He had spent the last 16 years of his life at the Blue Reef Aquarium in Cornwall, having traveled there from Greece.
- OUR NEWS10/09/2026
Sea turtles kept in a restaurant tank in Chania: True love for nature begins with respect.
We all feel a sense of excitement when we encounter a wild animal up close. It is only natural to want to connect with nature, observe it and understand it better.
- OUR NEWS09/09/2026
Schools are back at ARCHELON! A new year full of learning and action
The new school year is beginning, and with it, the voices, questions, and excitement of thousands of students return to ARCHELON’s Sea Turtle Rescue Centre.
- OUR NEWS06/09/2026
Sea Turtle Hatchlings Captivated All Ages in Corfu
- OUR NEWS01/09/2026
Taking time off work to volunteer for the sea turtles in Greece: Amy’s month with ARCHELON in southern Peloponnese
When Amy Carey was 10 years old, she came face to face with a sea turtle while on holiday in Greece. Decades later, at 47, she decided it was time to turn that childhood memory into reality.
- OUR NEWS13/08/2026
Hatchlings need help in September and October: Special volunteer offer for 2 weeks!
In order to protect the nests and the last hatchlings of this year, we need the help of more volunteers!
- OUR NEWS10/08/2026
One beach party canceled, 66 nests saved in Chania!
A significant victory for the protection of sea turtles in Chania, thanks to the direct cooperation of ARCHELON and NECCA.
- OUR NEWS07/08/2026
Sea turtles of the Saronic Gulf: Why feeding them is not an act of love
The Municipality of Saronikos and ARCHELON are campaigning for the safe and proper coexistence of bathers and wildlife.

