Lake Jennings in Lakeside is a Helix Water District reservoir spanning 85 surface acres at 700 feet elevation on Harritt Road, serving as one of East County San Diego's premier fishing and camping destinations. A 97-space campground with full-hookup, partial-hookup, and tent-only sites operates year-round, extending a camping corridor through eastern Lakeside that includes Rancho Los Coches RV Park on Highway 8 Business. Nearly 30,000 pounds of fish — rainbow trout from November through April and channel catfish through summer — are stocked annually, and the lake produces blue catfish exceeding 15 pounds during the night fishing season between Memorial Day and October. Boat rentals, a floating fishing dock, and a private boat launch operate on weekends, while the on-site bait and tackle shop supplies California State Fishing License holders with terminal gear and lake-specific rigs. The campground's 32 full-hookup sites accommodate rigs up to 45 feet with 30-amp electrical connections, and RV travelers source hoses, leveling blocks, and hookup adapters from Webb's RV Supply Inc on Maine Avenue before arrival. Five rentable tipis and a Super Site with panoramic lake and mountain views supplement the traditional campsite inventory across 350 acres of managed recreation land surrounding the reservoir.