Kefalonia, Greece Pic source: http://www.flickr.com/photos/marjolynn/5234620082/sizes/m/in/photostream/

The largest of the Ionian Islands,Kefalonia has plenty to offer visitors from beaches and water sports to churches, monasteries, castles, forts, archaeology and unique food and wine. But a primary attraction for tourists in Kefalonia is the lakes and caves, which have meaning that reach back to ancient Greek mythology.

Melissani Cave: Cave of the Nymphs

Rediscovered in 1951, Melissani is near the town of Sami in Kefalonia, and one of the most popular tourist destinations on the island. Featuring a light-blue lake surrounded by a forest of trees, the cave wasonce two big chambers that caved in several thousand years ago, leaving what looks like a lake at the bottom of a sinkhole.