Kiki's, Mykonos - A taverna without a sign or phone number, it's perched above the beach and hidden behind the trees that surround it. The simple menu includes Greek salads and the fish of the day. During peak lunch hours (from 3 to 5 p.m. in Mykonos), the outdoor tables fill up quickly. DETAILS Agios Sostis Beach, north side of Mykonos, just past Panormos Bay. (The biggest challenge is finding this place - it's really hidden! But well worth the search, and the hunt is half the fun)
Hidden Beach, Marieta Islands, Mexico - once a target practice for the Mexican government, this former bomb site is now a paradise for snorkelers, scuba divers, and nature lovers, because the crystal clear waters make it easy to see the humpback whales, sea turtles, dolphins, and colorful fish that congregate here.