Walk on the island of Pomègues, which is part of the Frioul islands off Marseille.
The there and back trail goes to the pretty calanque de la Crine, and allows you to observe a fort and a semaphore.
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There and back
Download the map on your smartphone to save battery and rest assured to always keep access to the route, even without signal.
Includes IGN France and Swisstopo.
Maritime shuttle between the Vieux-Port and the Port de Frioul.