Turns out there are snowmelt-fed underground streams that flow through the cave and drain into the Kaweah River system, ...

Habitat: The giant sequoia is found for a distance of about 250 miles (402 kilomters) in central California at elevations of 4,000 to 8,000 feet (1,220 to 2,440 meters).

It's open to the public for the first time in four years – since a parade of natural disasters left it inaccessible.

A campground in the Sierras of California is probably one you don't know about yet, tucked into the pristine wilderness beside an Alpine Lake.