10. Fern Canyon – Prairie Creek Redwoods State Park
Tucked within the towering redwoods of Northern California, Fern Canyon is a lush, narrow gorge with 50-foot-high walls covered entirely in ferns and moss. It feels like you’ve stepped into a prehistoric world. The short, shallow hike through the canyon is peaceful and scenic — and it’s so unique, it was featured in Jurassic Park 2.