Tourist rescued after plunging off cliff at Hawaii's Kīlauea volcano, one of world's most active volcanoes currently erupting with lava fountains exceeding 1,000 feet.

Certain cliffside trails are closed each year to protect peregrine falcon nests, but Acadia National Park visitors can watch them from afar.

Rescue team members recount harrowing cliff rescue on Pacific Crest Trail 02:47. A hiker who was trekking the Pacific Crest Trail was saved after slipping down a cliffside in Riverside County.