The underwater mountain is nearly 2 miles tall and supports a thriving deep-sea ecosystem, including a pristine coral garden the size of three tennis courts as well as a sponge garden, Virmani said.

was called out to an injured hiker 2.2 miles up Saddle Mountain Trail. SEE ALSO: Crews hiked up, made contact and stabilized the person. The U.S. Coast Guard was unable to help due to a thick ...