A South Australian sinkhole, known as the Shaft, was popular with extreme divers until four died underneath the ground due to ...

A new study shows that fully protecting the world's most popular scuba diving sites could not only help marine life bounce ...

Swim through seagrass meadows, explore ancient history and observe dugongs among coral reefs — an awe-inspiring world beneath ...

The 38-acre Black Canyon Open Space was acquired in 2016 from a private trust using funds from Great Outdoors Colorado and ...