You can catch and release trout in Castle Creek and the Sacramento River while staying at Riverside Campground (fishing license required). There are many places along the park's trails and river where you can stop off for quiet fishing.
Twenty-eight miles of trails meander through the gorgeous Northern California wilderness near Riverside Campground. You can access the start of the Indian Creek Nature Loop, Bob’s Hat Trail, and Vista Point Trail by following the River Trail from the campground to the Castle Crag Campground. The Pacific Crest Trail also cuts through the state park. We also recommend the ever-beautiful Crags Trail, as well as the more strenuous (but unbelievably rewarding) Castle Dome, a 6-mile hike.
Interested in the supreme and unbeatable rock climbing options readily available to visitors to Castle Crags? The iconic granite spires of Castle Crags are a famous NorCal trad and sport climbing destination. Scrambling and general rock exploration is possible on most hiking trails, as the park's granite structures offer nearly unlimited climbing potential. The most popular route taken among climbers, the Cosmic Wall, has been praised by many cragsmen and cragswomen alike. Many other routes can also be found, with difficulties ranging from 5.6 through 5.11—just know that the approach to most climbing routes requires at least one hour of uphill hiking.
We’re talking about some serious elevation here, so the area definitely gets its fair share of snow during the winter months. But, look on the bright side--the park is open all year and offers some great winter sport opportunities. Visitors can snowshoe and ski to their hearts desire within the confines of the State Park, and it is a very common activity among adventurers in the area.
Swimming in the cold waters of the Sacramento River is a great way to cool down on a hot summer day, though no lifeguards are posted. A smattering of swimming holes sit along the river—check out the River Trail, or, for a local favorite, stop off at t Castle Creek’s mile marker 2.
Riverside Campground visitors may spot coyotes, ringtails, black bears, and red-tailed hawks.