Mount Diablo State Park is within easy towing distance of El Sobrante and features campgrounds with sites that can accommodate travel trailers, potable water, and restrooms amid panoramic hilltop scenery. Del Valle Regional Park provides a lakeside setting a short drive from El Sobrante, with reservable campsites that accept trailers, showers, and boat access for day activities. Both parks operate reservation systems during peak season and offer level sites or pull-through options suitable for larger rigs. These campgrounds create convenient bases for unhitching and exploring nearby trails and scenic drives.