Most scuba diving happens in shallow water where light and marine life are abundant. But some places demand something different. To dive deeper than normal limits, divers must use a special breathing ...

Cave diving combines the thrill of scuba diving and with the excitement of exploring a cave; it’s a challenging activity even for experienced explorers. At these four sites — some of the most popular ...

If one thing’s clear from Jill Heinerth’s breathtaking new memoir on her life as a professional cave diver, it’s that this unusual career path requires serious mettle. Self portrait under the tannic ...

WAUNAKEE (WKOW) — Although the rescue of soccer team members in Thailand was more than 8,000 miles away, people here in southern Wisconsin are still in awe of the feat. "You have no idea the ...

MIAMI, FL (AUGUST 26, 2010) -- The cover story of the most recent issue of National Geographic Magazine (August 2010) features a University of Miami (UM) led expedition to the underwater caves of the ...

(This program is no longer available for streaming.) Follow a fearless team of scientists as they venture into blue holes—underwater caves that formed during the last ice age, when sea level was ...