Cave Diving ~It's been said, Don't wait for your ship to come in - swim out to it. In northern Florida, this underwater cave can be reached by free diving. The diver in the photo is swimming about 20 feet into the opening of Devil’s Eye Spring.
Tectonic Plate Gap Between Europe & America.The gap is widening by one inch a year. The area - near Iceland - is riddled with faults, valleys, volcanoes and hot springs, caused by the plates pulling apart.
Cave diving,only those who are properly trained and properly equipped should ever enter a cave system underwater. If you are an Open Water Diver, equipped for that sport, you have no business in a cave.