Natural attractions in Peloponnese

Spectacular Natural Wonders

The Peloponnese landscape features diverse geological formations, from the subterranean river systems of the Diros Caves to the mythological Waters of the Styx on Mount Helmos. This selection includes the tiered waterfalls of Polilimnio, alpine lakes like Doksa and Tsivlou, and the historic caves of Nestor and Franchthi. These sites showcase the region’s dramatic limestone cliffs, ancient archaeological layers, and the high-altitude peaks that define the southern Greek mainland.

vulka69 / CC-BY-SA

Monemvasia

A massive limestone plateau rising 300 meters above the Myrtoan Sea. Connected to the mainland by a causeway, it hosts a medieval fortress and upper town ruins.

George Fournaris / CC BY-SA 4.0

Vlychada cave Diros Mani

A subterranean river cave explored primarily by boat. It features extensive stalactite and stalagmite formations, with fossils of prehistoric hippopotamuses and panthers discovered in its chambers.

Efi tsif / CC BY-SA 4.0

Franchthi Cave

Franchthi Cave or Frankhthi Cave is an archaeological site overlooking Kiladha Bay, in the Argolic Gulf, opposite the village of Kiladha in…

Katarraktes Brontou

A secluded waterfall located near the village of Vresthena in the Parnon mountain range.

Henk Croijmans / CC-BY-SA

Akronafplia

The oldest part of Nafplio, this rocky peninsula features fortification walls dating from the Hellenistic, Byzantine, and Venetian periods.

Nestor's cave

Located on the hill below the Old Navarino Castle, this cave overlooks Voidokilia Beach. In Greek mythology, this is where Hermes hid the cattle stolen from Apollo.

Rafael Sarrion / CC-BY-SA

Polilimnio

A gorge containing a sequence of fifteen tiered lakes and waterfalls. Wooden bridges and hiking trails connect the various turquoise basins.

Cave of the Lakes

The Cave of the Lakes, formerly called Troupisio, is located near the village Kastria in the municipality of Kalavryta, Achaea regional…

Lake Doksa

An artificial lake at 900 meters elevation, surrounded by the peaks of Helmos and Ziria. The 14th-century Monastery of Saint George overlooks the water.

Dasi115 / CC BY-SA 4.0

tsivlou lake

Formed in 1913 by a landslide on Mount Helmos, this natural lake sits at an altitude of 700 meters and is surrounded by pine and fir forests.

Ydata Stygos

A waterfall on the Mavroneri cliff of Mount Helmos. In Greek mythology, these waters served as the entrance to the Underworld and the source of the gods' oaths.