They built up during ice ages, when the sea level dropped dramatically, leaving the caves dry. For Peter Swart, professor of marine geology and geophysics at the University of Miami, speleothems ...

Reaching up to 300m, Tasmania's sea ... Geological discoveries made here suggest Tasmania and Antarctica were once parts of the same land mass. Dive category: This is a potentially hazardous cave ...

These caves show evidence of a change in sea levels that took place thousands of years ago. The caves once existed above the water line, but were flooded when sea levels rose. Deep within these ...

The world has many beautiful sea caves, but few of them display such an intricate combination of breathtaking sights and distinctive geology. Like other sea caves, Smoo Cave's impressive 50-foot ...