Taken in the Mellisani Caves in Kefalonia. The Lake was originally an underground lake until an earthquake caused part of the roof to fall in. Now part of the lake is bathed in sunlight bringing out its azure blue colour.
Men give guided tours on rowing boats. This photo shows one of them taking a cigarette break in the sunshine.
Landscape and travel
Philip_H, MattB1987, nonur and 3 more