Good campgrounds near El Rio include Mandalay Beach RV Park, which provides full hookups, pull-through sites, and beachfront access ideal for larger rigs. Ventura Ranch KOA offers shaded, wide sites, full utility hookups and level pads that easily accommodate a fifth wheel and towing vehicle. Both campgrounds are close to major arteries for easy arrival and offer on-site amenities like dump stations and potable water so setup and unhitching are straightforward. These parks give a mix of scenic settings and practical services for comfortable longer stays near El Rio.