The Longest Reproductive Migration Of Greek Loggerheads

Reggina, a loggerhead female turtle was caught by ARCHELON researchers outside Mesolonghi lagoon in July 2013. She was marked with flipper tags and equipped with a satellite transmitter. The satellite track showed that Reggina soon entered western Mediterranean, ventured a considerable time offshore the Algerian coast, including one loop northwards approaching the Balearic Islands in Spain. Her transmitter stopped operating on 24/02/2014 when she was near the Algerian coastline.
After about two years’ time Reggina was observed, by ARCHELON volunteers, nesting on Sekania beach in Zakynthos! She was identified by her flipper tags, still in place, as her transmitter was shed off. It is noted that satellite transmitters are shed off after their operational time, which avoids disturbing the turtle.
Usually loggerhead turtles nesting in Greece migrate to the two known large foraging areas of Gulf of Gabes and in North Adriatic, both found at a distance of about 1000 km from the nesting area. The trip of Reggina from the Balearic Islands to nest in Zakynthos, estimated at about 1,800km in straight lines, highlights the longest known reproductive migration for a Greek loggerhead turtle.
We shouldn’t neglect mentioning another long migration of a female turtle –nicknamed Luar- tracked by ARCHELON in Amvrakikos Gulf in May 2003. Luar, after spending 7 weeks in the Gulf, headed straight for the Levantine coast reaching Syria in August. She spent the winter wandering along the southern coasts of Turkey and during the summer of 2004 came close to the nesting beaches there. Since it is not 100% certain that she eventually nested there, her 1,700km-long (in straight lines) journey cannot be confirmed as a reproductive one.
We should mention that Reggina was tagged in the course of the INTERREG project PRO ACT NATURA 2000, and Luar in the course of the LIFE project LIFE99NAT/6475.
How was the Sea Turtle Festivities this year?
Photographing sea turtles for 12 years
RECENT NEWS
- 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.
- OUR NEWS05/08/2026
Greek fishermen release rare Leatherback Turtle in the North Aegean!
In mid-July, we received a video of an impressive sea turtle that had been caught in the nets of a fishing boat.
- OUR NEWS30/07/2026
Join our Sea Turtle Nest Excavations in Peloponnese and Crete
ARCHELON invites you to a unique experience of environmental education and scientific observation!
- OUR NEWS20/07/2026
43 Years of Tagging Sea Turtles in Greece Reveal Their Journeys in the Mediterranean
A new scientific publication highlights the important marine areas turtles use in the Mediterranean, through ARCHELON’s tagging program in Zakynthos, Kyparissia Bay and Rethymno.
- OUR NEWS17/07/2026
The first hatchlings of 2026 in Zakynthos!
The first nest hatched on Dafni beach in Laganas Bay in Zakynthos. Our team discovered the tiny tracks in the early hours of Tuesday, July 14th.
- OUR NEWS15/07/2026
A rare giant of the Greek seas: What our new study reveals about the Leatherback turtle
A new scientific publication brings together for the first time all available records of the Leatherback sea turtle (Dermochelys coriacea) in Greek waters.
- OUR NEWS10/07/2026
Raising awareness for the sea turtles in Corfu
To mark the launch of the project, ARCHELON carried out a series of outreach activities across Corfu, bringing local communities and visitors closer to sea turtle conservation.
- OUR NEWS08/07/2026
Protecting loggerhead sea turtles contributes to maintaining the balance of marine ecosystems.
Sea turtles play a vital role in maintaining healthy marine ecosystems. As part of marine food webs, they contribute to the balance and functioning of coastal and marine habitats.
- OUR NEWS05/07/2026
Is the Zakynthos National Marine Park Truly Protected?
Two cases of environmental law violations in Zakynthos that went unpunished.
- OUR NEWS29/06/2026
New Sea Turtle Protection Project in Corfu
ARCHELON partners with the Ionian Environment Foundation and the Mar-Bella Collection Hotel Group to Protect the Nesting Beaches of Corfu
- OUR NEWS26/06/2026
ARCHELON & TUI Turtle Aid Greece: 3 successful years in Crete
With the completion of the “TUI Turtle Aid Greece” project, ARCHELON presents impressive results in nest protection, the hotel employees training and raising awareness among 66,000 tourists.
- OUR NEWS24/06/2026
Effective turtle conservation begins with safeguarding the nesting beaches
Field surveys were carried out over two consecutive nesting seasons (2024–2025), assessing 167 nesting beaches across Greece, covering 270 km of coastline.
- OUR NEWS22/06/2026
ARCHELON expresses its sorrow at the loss of Mona Khalil


