Boat trips to the calanques are fun to arrange. Walk along the line of boats at the Cassis harbor and see which ones are filling up for which trips. They'll be going to a set of 3, 5, or 8 calanques. When you find a boat going to the set you want, that still has good seats available, pay and get in and wait for the departure. 3 Calanques; 0h45 (about 10 €) Port Miou, Port Pin, En Vau 5 Calanques; 1h (about 12 €) Port Miou, Port Pin, En Vau Loule, Devenson 8 Calanques; 1h30 (about 15 €) Port Miou, Port Pin, En Vau Loule, Devenson Oeil de Verre, Sugiton, Morgiou