Melissani Lake, Greece

Melissani Cave, Lake Kefalonia, Greece

The Baatara gorge waterfall

Travel Information: The Hidden Beach - Marieta Islands, Puerto Vallarta, Mexico >>> I would love to take a dip here!

Cancun. Xcaret’s underground rivers are part of a large cave system that forms deep under the surface of the Yucatan peninsula

Melissani, Greece

Plitvice Waterfalls, Plitvicka Jezera National Park, Croatia

Greece

One of the Ionian islands in Greece, Kefalonia

Greece Mineral Springs. Vintage travel poster showing the head of a Greek statue, 1953.

Greek Island vacation

Athens, Greece

underground lake!

Greece

Top 20 Earth Pictures found on Stumble Upon | Earth Pictures

Greece

The Greece Travel Journal by Younghusband World Travel Journals (ProductiveLuddite.com)