Martvili-the region of Samegrelo, Georgia, has been named as one of the best scuba-diving locations in Europe. It features clear waterfalls that fall from steep, fern-covered cliffs draped with hanging ivy branches that resemble festive lights.
The canyon is 2,400 m long, 20-30 meters deep, and 5-10 meters wide. Small streams running through the limestone near the town of Martvili have carved a series of spectacular caves and canyons. Some are accessible by raft, others have boardwalks built inside.