Beneath the land surface of the Bahamas, the underwater caves known ... But during the last ice age when sea levels were much lower, the caves were the high-and-dry habitat for a completely ...

Sistema Sac Actun, the world's largest underwater cave system, spans an impressive ... shedding light on the Ice Age and early human history in the Americas. Despite its significance, Sistema ...

The underwater caves of the Yucatán Peninsula are a window ... and their reach expanded. During the ice ages, the caves dried out as the sea level dropped, and the seeping water from the surface ...

Twin Caves, about 5 miles northeast of Marianna, is a popular diving destination at the bottom of Merritt’s Mill Pond, according to Caveatlas.com. Oliver J Albrecht YouTube video screengrab One ...