The continuous Fly Geyser of Fly Ranch is on private land in Nevada and began during a 1916 water well drilling that accidentally penetrated a geothermal source. via Green Fly Geyser Fine Art Print - Inge Johnsson
Secluded cave near Lagoa Algarve Portugal [Portugal is has it all. great food and wine sights natural spots (like this one) friendly people. and you can get away with your high school Spanish if you need to.
The Baatara gorge waterfall (also known as the “Cave of the Three Bridges”) in Tannourine, Lebanon. The waterfall drops 255 metres ft) into the Baatara Pothole, a cave of Jurassic limestone located on the Lebanon Mountain Trail.