Numerous MTB trails run near Jemez Springs and throughout the Jemez Mountains. Check out the East Fork Trail for single-track near the San Antonio Campground.
Anglers can cast for rainbow trout from the campground on a paved walking trail that follows the San Antonio River. Good fly fishing can be found at the nearby Valles Caldera National Preserve.
The area surrounding San Antonio Campground is loaded with awesome hikes, including the Jemez Falls and Battleship Rock trailheads. The nearby Valles Caldera National Preserve is also a rewarding hiking spot.
Las Conchas and Gilman Tunnels are two popular crags near San Antonio Campground.
Visitors can wade in the San Antonio River to cool down. Otherwise, San Antonio Campground is close to two excellent hot springs sites: Spence Hot Springs (5 minutes south) and San Antonio Hot Springs (20 minutes north). Hot springs don't quite allow for swimming, but soaking is just as good.
Keep your eyes peeled for coyotes, turkeys, woodpeckers, and the Jemez Mountain salamander when exploring San Antonio Campground and the wider Santa Fe National Forest.