Just 12 miles north of San Francisco’s bustling streets, this ancient redwood sanctuary in Mill Valley feels like stepping ...

Muir Woods National Monument in Mill Valley isn’t just another pretty spot in California’s endless parade of natural wonders; ...

Stepping onto the natural waterslide at Slide Rock State Park, just outside Sedona, Arizona, I had to suppress a squeal. The ...

There's a valley hidden within the majestic Grand Canyon that can fill your day with zip-lining thrills and scenic views you ...