A new study on blue sharks shows that their movement patterns in the open ocean are closely linked to internal energy stores ...

A free diving instructor enjoying the open water of the Pacific Ocean near Mexico had her peace interrupted by a ...

Denis Crean, a businessman and longtime swimming coach, has pursued his passion for open-water swimming in just about every kind of waterway. He has overcome headwinds at Lake George in Upstate New ...

Long believed to be a single, globally distributed species drifting freely across the open ocean, the bluebottle – also known as the Portuguese man o’ war – has now been revealed to be a group of at ...

Up and down the South Bay coastline, open ocean swims have drawn large crowds for years, including the iconic Dwight Crum Pier-to-Pier Swim, a 2-mile open-water race from the Hermosa Beach Pier to the ...

Oceanic manta rays dive to record depths of 1,250 meters (4,100 feet), according to a first-of-its-kind study to examine in detail the extreme deep-diving behavior of these rays. Researchers tracked ...