Franchthi Cave, Archaeological site on Koiladha Bay, Argolis, Greece

Franchthi Cave is an archaeological site overlooking Kiladha Bay in southeastern Argolis, Greece, opposite the village of Kiladha. Its entrance, a roughly triangular opening in a gray limestone hillside above the waterline, is about 30 meters wide; the cave runs some 150 meters deep and has two large and three small chambers.

People inhabited the cave from the late Upper Paleolithic through the Neolithic period, covering roughly 37,000 years. Use ended around 3000 BC, when settlements in the region gradually moved to the surface and into nearby villages.

Excavations revealed some of the earliest evidence of farming and animal herding in Greece, with remains of grain and domesticated species found in the later layers. Fish bones and shells recovered from the site show that people relied heavily on the sea while gradually shifting from hunting to raising livestock.

Access follows a path from Koiladha village, with sturdy footwear recommended due to uneven terrain. The bay itself can be explored from the shore in calm weather, though many remains lie underwater.

Obsidian from Melos, an island more than 100 kilometers (62 miles) away, confirms early seafaring skills among inhabitants. Remains of tuna indicate they also practiced offshore fishing rather than staying solely near the coast.