Castle Rock Falls reside within the namesake State Park in Santa Cruz County, California. Castle Rock State Park is famous for its peculiar rock formations, abundant greenery including coastal redwoods and madrones forests. The park which fringes upon the borders of Santa Clara and San Mateo counties serves as a crucial linking point for the vast network of hiking trails.
The 1.6 miles hike to the Castle Rock Falls starts off from the Saratoga Gap and encounters the Kings Creek in between. The alcoves, sandstone formations and natural rock arches are an exciting venture for rock climbers and worth a study for petrology and archaeology. Bringing hiking shoes, drinking water and staying off the unfamiliar and/or unmarked trails are advised.