A blue hole on Andros Island in the Bahamas. Barbara Jane Moore bends a tree bough on the South Andros Blue Hole and Nature Trail, and snaps off a leaf.

In 2014, Ms. Wallace’s colleagues collected sediment cores from the bottom of blue holes on South Andros Island. Back at Woods Hole, the team used radiocarbon dating to date the ages of mangrove ...

After a brief stop at the smaller Cousteau’s Blue Hole, where adventurer Jacques Cousteau dived in the early 1970s, ... On Andros Island, four national parks in three days: ...

Andros is the largest island in the enormous archipelago of the Bahamas--29 populated islands and 1,300 cays ... I turned right onto a rubble track that led to Uncle Charlie's Blue Hole, ...

An oceanic blue hole off Andros. Ty Sawyer / Sport Diver Like the island it rubs shoulders with, most of the wall along the Tongue of the Ocean remains relatively unexplored.

Andros Island, the Bahamas’ secret garden The ankle-twisting trail to the magnificent Rainbow Blue Hole zigzagged around limestone outcrops and past wild orchids, bromeliads ...

For Kenny Broad, a University of Miami scientist who led a National Geographic Society-backed expedition that made 150 dives into blue holes on Abaco, Andros and other islands, the rewards far ...

Just off the southeast coast of Florida lies an island named Andros. It's 104 miles long and 40 miles wide at its widest point. Technically Andros is three islands, separated by two bights, but ...

Blue hole bacteria Within each blue hole, ... "We examined two caves on Abaco Island and one on Andros Island," Iliffe said. "One on Abaco, at a depth of about 100 feet, ...