The Sitia UNESCO Global Geopark occupies the easternmost part of Crete and encompasses almost the entire Municipality of Sitia. It was designated a UNESCO Global Geopark in 2015 in recognition of its geological heritage of international importance, its extensive karstic landscape, numerous caves and gorges, fossil-bearing sites and the close relationship between the natural landscape and the history and culture of eastern Crete.

The area is predominantly mountainous, with the Zakros Mountains dominating the interior and a remarkably intricate coastline surrounding the region. Its geological diversity is combined with important ecosystems, traditional villages, archaeological sites, monasteries, ancient paths and monuments that reflect thousands of years of human presence.

An information centre and natural history exhibition operates in the wider area of Zakros, introducing visitors to the geology, fossils, caves and biodiversity of the Geopark.

Geological heritage

The geology of the Sitia UNESCO Global Geopark includes features that are unique in Crete and of considerable international importance. Most of its rocks are sedimentary in origin and contain abundant fossils, providing valuable information about the ancient marine and terrestrial environments that once existed in the region.

Among its most important geological sites are Pleistocene mammal fossil deposits containing remains of deer, hippopotamuses and elephants, as well as older discoveries belonging to the giant proboscidean Deinotherium giganteum. Numerous marine fossils occur within the Neogene sediments, while plant remains provide evidence of the vegetation that covered the area during much earlier geological periods.

The palaeo-shorelines around Zakros are of particular scientific importance. These formations record former sea levels and provide evidence of the tectonic movements and climatic changes that affected eastern Crete. Coastal terraces and sedimentary deposits preserve a valuable record of the geological evolution of the Mediterranean.

Caves and karstic landscape

One of the most distinctive features of the Geopark is the extensive karstic landscape developed within its limestone formations. More than 170 caves and sinkholes, together with numerous gorges, have been recorded throughout the region. This makes eastern Sitia one of the most important speleological areas in Crete and a valuable field for research in speleology, biospeleology and subterranean biodiversity.

The caves are not only geologically important. Several were used by people as shelters, burial sites, places of worship or permanent and temporary dwellings from prehistoric times onwards. They also support specialised organisms that have adapted to permanent darkness and the particular environmental conditions of the underground world.

Geography and landscape

Following the extension of its boundaries, the Sitia UNESCO Global Geopark covers approximately 713.5 square kilometres and includes almost the entire Municipality of Sitia. It extends from Cape Sidero and the northern coast to the southern shores of the former Sitia Province, encompassing the wider area of the city of Sitia, its mountain villages and the coast of Zakros.

Mountains, small plateaus, gorges, caves, secluded beaches and coastal wetlands form a remarkably varied landscape. The geology of the region has influenced the location of settlements, agriculture, water management, transport routes and the traditional activities of local communities.

Conservation and sustainable development

A UNESCO Global Geopark is not an enclosed reserve, but a unified geographical area in which the conservation of geological and natural heritage is combined with education and sustainable local development. Through geotrails, hiking routes, information centres and educational activities, visitors can discover the geological history of eastern Crete and understand how it has shaped both the natural environment and human life.