Counting the Loggerhead nests in Zakynthos - the work of an army of ants
For the past 41+ years, ARCHELON has been counting annually nests laid by loggerhead turtles on the island of Zakynthos, one of most important nesting areas in the Mediterranean. It is a very meticulous job as it is carried out every day, at the same time of year along the same beaches applying the same standardized methods. Trained volunteers coming from all over the world take on the job, braving the harsh working hours, the extreme heat and other adverse conditions. ARCHELON’s nest count program in Zakynthos is the oldest in the Mediterranean and one of the oldest in the world. Such long-term projects provide important information for the conservation status of sea turtle populations, and this is the reason that Zakynthos has been characterized as an index-area for IUCN.
Since the establishment of the National Marine Park of Zakynthos, ARCHELON cooperates closely with the Park’s Management Agency, now operating under the nationwide Natural Environment and Climate Change Agency (NECCA), providing every year data collected so at to facilitate the Park’s primary task which is the management of the nesting beaches.
In 2024, we counted a record number of nests since the start of our project 41 years ago. Nevertheless, the long-term trend shows that the number of nests is more or less stable as we have observed intense annual variations over the years (see figure). These variations are due to fluctuations on the environmental conditions at the foraging areas of turtles. Favourable conditions make more food available making the turtles to breed more frequently. So, some years we count more nests - however this does not automatically indicate an increase in the total number of breeding females.
However, the current record in the number of turtle nests laid on the island during 2024 also carries a feeling of optimism that if this trend continues, it may lead to the recovery of the Zakynthos sea turtle population.
Transforming Rethymno: Sustainable tourism opportunities with the sea turtle as ambassador
Successful wrap up of Amvrakikos project for 2024 marking two decades of dedicated work
RECENT NEWS
- 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.
- OUR NEWS20/08/2025
A nesting turtle brings hope amidst a night of fire
After a 12-hour period filled with fear and uncertainty, the family witnessed a miracle of nature. “It brought us peace and reminded us of what is important”.
- OUR NEWS14/08/2025
ARCHELON’s Life-Saving Chain with the Support of the Green Fund
Thanks to persistence, medication, daily care, and a great deal of patience, “Snowball” gradually moved from a critical state to full recovery.
- OUR NEWS31/07/2025
ATTENTION! Please do not feed sea turtles – They are not pets- Protect them from human induced impacts
ARCHELON informs that the phenomenon of feeding sea turtles by people in coastal areas, ports and tourist spots has been observed in recent years. Despite good intentions, this practice causes serious problems – for turtles and for people alike.
- OUR NEWS25/07/2025
New Info Station in Kyparissia Opens for LIFE MareNatura Project
Located at the beachfront of the town, the Info Station operates daily 18:30 - 21:00.
- OUR NEWS21/07/2025
Public Excavations of Sea Turtle Nests in Crete
The excavations are open for both kids and adults and take place on the nesting beaches of Rethymno, Chania, and the Messara Bay during the months of August and September.
- OUR NEWS21/07/2025
Public Excavations of Sea Turtle Nests in the Peloponnese
The excavations are open for both kids and adults and take place on the nesting beaches of Kyparissia Bay, Romanos, Koroni and Lakonikos Bay during the months of August and September.
- OUR NEWS16/07/2025
Earlier than ever before was the start of the 2025 Hatching Season of Loggerheads in Greece – The first hatchlings have reached the sea!
We are excited to announce the beginning of the 2025 sea turtle hatching season, with the earliest hatching event ever recorded since monitoring began in 1984.
- OUR NEWS15/07/2025
Important presentations at the 16th International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions (ICZEGAR)
ARCHELON actively contributed to the Congress with three oral presentations, highlighting key aspects of its scientific and conservation work for sea turtles.
- OUR NEWS09/07/2025
Inspections in Zakynthos and Kyparissia by representatives of the Bern Convention
The experts were in Greece to monitor the implementation of the Recommendations adopted by the Standing Committee of the Bern Convention to our country regarding the protection of the Loggerhead sea turtle and the ongoing threats faced by the species in its largest breeding habitats in the Mediterranean.
- OUR NEWS02/07/2025
Citizen Science: Recording of Sporadic Nesting of Sea turtles across the Aegean
For over four decades, many people have been reporting turtle sightings and tracks across the Greek coastline. Thanks to them, we have confirmed 577 unique nesting events outside our regularly monitored areas