Know a travel secret about | ile De Frioul ( France)

My friends and I were in Marseille for a couple days and weren't sure what to do in town. We went down to the harbor, the center of town, and bought a ticket for a boat ride to Ile de Frioul. The island was very quiet and so we felt like the only three people exploring its many paths up hills and into hidden coves. It was our own private adventure and it was a beautiful way to spend a few hours in the South of France.