Hidden Villa in Los Altos Hills hosts group camping and educational stays with potable water and restrooms; contact them ahead of time about vehicle access and size limits. Rancho San Antonio County Park offers nearby parking and trailhead access, and some adjacent county lots include pull-through spaces that can accommodate longer rigs, though full hookups are limited. Mount Madonna County Park provides developed campsites that can accept RVs of varying lengths and basic services; verify hookup availability when you reserve. Before heading into the hills, confirm site dimensions, prioritize listings that advertise pull-through or full hookups if needed, and check for nearby fuel and supplies.