Calanque

A calanque (from the Corsican word of pre-Indo-European origin calanca (plural calanche) with meaning "inlet"; Occitan calanca too) is a steep-walled inlet, cove, or bay that is developed in limestone, dolomite, or other carbonate strata and found along the Mediterranean coast. A calanque is a steep-sided valley formed within karstic regions either by fluvial erosion or the collapse of the roof of a cave that has been subsequently partially submerged by a rise in sea level.