The Calanque de Morgiou is one of the biggest calanques located between Marseille and Cassis.
Formerly a fishing port, it is famous for the gigantic tuna fishing organized there in 1622, when the king Louis XIII paid a visit to Marseille. It still houses small fishing cabins, but they're now used for tourism[1][2] rather than fishing.
The Calanque de Morgiou is also famous for the Cosquer cave, an underwater grotto containing numerous cave drawings dating back as far as 27,000 years BP.[3]