Kolympithres
Massive granite formations create natural swimming pools and narrow channels between rocks — one of the most-photographed coastlines in the Cyclades. The late-afternoon light turns the pools amber and the water crystal clear. It is busy in July–August, but arriving before 10am transforms the experience.
Tip: Go early (before 9:30am) in summer. Bring water shoes — the rock formations are beautiful but not always comfortable on bare feet. The beach bar at the eastern end has good coffee and cold juices.