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Calanques & Coastal Nature

Cassis is defined by a unique karstic landscape where dramatic limestone cliffs meet the Mediterranean. This selection highlights the region's complex hydrological features, including the massive submarine springs of Port-Miou and Bestouan, which discharge freshwater directly into the sea. The area features the Calanque de Port-Miou, a former quarry turned natural harbor, alongside vertical sinkholes like the Aven de la Gorguette and the sheer climbing faces of the Falaise du Calendal.

Serged / CC-BY-SA-3.0

A

Exsurgence de Port-Miou

A major submarine karstic spring discharging approximately 7 cubic meters of freshwater per second. It features a vast underwater gallery system frequently explored by technical cave divers.

B

Calanque de Port-Miou

The easternmost calanque and a former limestone quarry. It serves as a sheltered natural harbor and the primary trailhead for hiking routes leading into the Calanques National Park.

C

Émergence du Bestouan

A significant submarine karstic outlet located near Bestouan beach. The explored underwater cave system extends several kilometers inland through the limestone bedrock.

D