This spectacular boat tour explores the Calanques, the dramatic sequence of limestone inlets and turquoise coves that stretch along the coast south of Marseille. Cruising out from the city, the boat weaves beneath towering white cliffs into hidden creeks of astonishing beauty, with stops to swim and snorkel in the crystal-clear Mediterranean waters. A guide points out the geology, wildlife and secret corners of this protected national park. Combining stunning scenery and a refreshing dip, it is one of the most unforgettable experiences in the region.