4Melissani Cave, Greece
Greek legend has it that the Melissani Cave was occupied by nymphs who seduced sailors with their hypnotic charm. Well, you won’t spot the nymphs, but the fabulous views of the sapphire sea will more than make up for it! The caves are intriguing by themselves and make for an awesome exploratory adventure. Enjoy a boat ride in sea smack in the middle of Melissani Cave.