Vail Lake Resort near Temescal Valley offers RV sites with electric and water hookups, wide pull-through spots, and lakeside access that work well for larger towable rigs. Lake Perris State Recreation Area features developed campsites, ample trailer parking, and launch ramps that make staging boats and toys straightforward from a toy hauler. Cleveland National Forest campgrounds, such as El Cariso, provide rustic, scenic settings with roomy sites and access to trails when you want a more backcountry feel close to Temescal Valley. Together these options offer a mix of full hookups, pull-through layouts, and scenic surroundings tailored to towable setups.