In the heart of the lush forests of America's most visited national park, Grotto Falls tumbles 25 feet from a mossy overhang ...

Located along the Trillium Gap Trail – off the Roaring Fork Motor Nature Trail – Grotto Falls is a nearly 3-mile-long, round-trip hike that runs behind a 25-foot waterfall. Summer hikers love ...

You can walk behind the 25-foot high falls at the Grotto via the Trillium Gap Trail. You'll also see historic log cabins, grist mills and an array of wildlife from birds and deer to black bears.