Over 5,800 nests monitored by daily walking on sea turtle nesting beaches in 2022!
Over 5,800 nests monitored by daily walking on sea turtle nesting beaches in 2022!
Each year the breeding success of the loggerhead sea turtle is affected by weather, soil erosion, predation by wild animals, and human activities on the nesting beaches. In order to document and protect the nests and the hatchlings, trained ARCHELON researchers and volunteers camp near the most important nesting beaches of the country from May until the beginning of October.
In the summer of 2022, ARCHELON volunteers/researchers managed to cover about 100 kilometres of nesting beaches. "The density of nests is not the same on every beach. Τhe highest density of nests was observed, as every year, in Laganas Bay of Zakynthos (5.5 km), and in the southern Kyparissia Bay (9.5 km)", says Michalis Souroulidis, Project Manager for West Peloponnese.

The greatest nesting activity was recorded in the Peloponnese with 4,280 nests, surpassing the average number of nests in the region of the previous decade. In the Peloponnese, ARCHELON is active on the beaches of Kotychi, Kyparissia Bay, Romanos, Koroni, Lakonikos Bay and Evrotas, while 16 kilometres of nesting beaches in south-eastern Lakonia are covered by the Tulipa Goulimi Association in collaboration with ARCHELON .
In Laganas bay of Zakynthos in 2022 more than 1,180 nests were recorded and protected with the assistance of the National Marine Park of Zakynthos (Management Unit of Zakynthos and Ainos National Parks and Protected Areas of the Ionian islands, N.E.C.C.A.). The number of nests has remained relatively stable over the last decade.
In Crete, ARCHELON volunteers recorded and protected around 380 nests on more than 30 kilometres in Rethymno, Chania and Messara Bay. The number of nests is at the levels of the last decade.

Volunteers wake up at dawn every day and walk on the nesting beaches under the hot sun to find sea turtle tracks that are left on the sand the night before. These tracks will lead them to the nests with the eggs, which are well hidden inside the warm sand. Around the nests they find, they place special cages, which protect the eggs, both from predation by wild animals and from human activities. Nests that were made in "dangerous" places with high human activity are moved by the volunteers in more suitable places. Around the nests that are threatened by light pollution, a few days before hatching, shades are placed to prevent the disorientation of hatchlings. When the eggs start to hatch, the volunteers are there once again to monitor and protect their journey towards the sea.

More than 240,000 sea turtle hatchlings are estimated to have reached the Mediterranean Sea from the nesting beaches of Greece thanks to the efforts of ARCHELON’s volunteers. The baby turtles are food for many marine creatures and, often enough, they are accidentally caught in fishermen's nets. Few of them will make it to adulthood, somewhere between one in 1,000 and one in 10,000.
“We are grateful to everyone who walked on the nesting beaches, recorded and protected the nests. In a few months, another demanding summer for the protection of the sea turtle breeding in Greece begins. The volunteering groups are organized right now. We are looking forward to the summer with optimism", says Michalis Souroulidis, Project Manager for West Peloponnese.
Become one of the 2023 volunteers on the nesting beaches: Learn how now!
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RECENT NEWS
- OUR NEWS09/03/2026
The Annual General Assembly of the Association
ARCHELON's Members were invited to attend the Annual General Assembly on Saturday, February 28 at the Sea Turtle Rescue Centre.
- OUR NEWS03/03/2026
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On Monday, March 23rd, we have the chance to meet again online and share what we accomplished together in the past year.
- OUR NEWS03/03/2026
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- OUR NEWS24/02/2026
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When we analyzed the turtles’ codes, we realized that this was a turtle that had been tagged for the first time in the area 32 years ago! Specifically, turtle P4849 was tagged on July 7, 1993 and today is the turtle with the longest documented reproductive lifespan in Kyparissia Bay!
- OUR NEWS18/02/2026
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The presentation of our Accounts for 2025 was held with great success on Saturday, February 14th in Glyfada, honoring the people who are on the front lines for the protection of the Mediterranean.
- OUR NEWS11/02/2026
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The year 2025 was a milestone: a total of 1,253 nests were recorded and protected, while 7 female turtles were equipped with satellite transmitters, sending valuable data about their journeys across the Mediterranean.
- OUR NEWS23/01/2026
A turtle we treated 10 years ago was found in Spain!
“Castello” is a male Loggerhead turtle that was treated at our Rescue Centre in 2015. In 2025 he was found again at a Rescue Centre in Spain!
- OUR NEWS02/01/2026
Against All Odds: A Story of Marine Resilience from Amvrakikos Gulf
One turtle has been surviving for at least six years without a lower jaw!
- OUR NEWS29/12/2025
“Meetings with Remarkable Animals” A Heartwarming Reward for Our Efforts
Kristi Stassinopoulou shared with us a very personal moment: a sketch and a few pages from her book “Meetings with Remarkable Animals"
- OUR NEWS17/12/2025
ARCHELON’s Research: Expanding the Map of Mediterranean Green Turtles
In recent years, some green turtle nests have been recorded in Greece, indicating that the geographical spread of this species’ nesting areas in the Mediterranean is beginning to expand.
- OUR NEWS12/12/2025
The Power Behind Sea Turtle Conservation: Our 2025 Field Leaders
With deep gratitude, we honor all the Field Leaders who contributed to the success of the 2025 Field Projects.
- OUR NEWS10/12/2025
Unprecedented appearance of Leatherback Turtle on a Mediterranean beach
A new scientific record brings to light an extremely rare event for the marine life of the Mediterranean: the first confirmed appearance of an adult Leatherback Turtle (Dermochelys coriacea) attempting to nest in the Mediterranean basin.
- OUR NEWS08/12/2025
Applications Now Open for 2026 ARCHELON Field Leaders Posts!
ARCHELON is pleased to announce that applications are now open for the 2026 Field Leader positions across all nesting projects (applications open until January 31st).
- OUR NEWS05/12/2025
Saving Sea Turtles Together – A Tribute to Volunteers
On Volunteer Day, we take a moment to celebrate all those who came from near and far, put on the blue T-shirt, and embraced this important responsibility.
- OUR NEWS01/12/2025
Laganas Bay, Zakynthos: Successful Loggerhead Reproduction, Ongoing Habitat Problems
On the beaches of the Zakynthos National Marine Park, around 2,155 turtle nests successfully hatched thanks to active protection measures, but human pressures on coastal and marine habitats continue.


