While the photograph is authentic, the "underwater waterfall" is the result of an optical illusion. As explained in a CNN Travel story from August 2019, "Sand and silt on the ocean floor run off in a ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Beneath the surface of the Southern Ocean, vast volumes of cold, dense water plunge off the Antarctic continental shelf, cascading down underwater cliffs to the ocean floor thousands of meters below.

Grab a snorkel and take a look at what is being called the world's first underwater hotel. The two-story villa is set more than 15-feet below the Indian Ocean in the Maldives. The amenities include a ...

The Denmark Strait cataract is a sloping portion of the seafloor between Iceland and Greenland that funnels cold water from the Nordic Seas into the Irminger Sea, fueling Atlantic Ocean currents. When ...