There is also a free dump station in Mission Bay (San Diego downtown). Lots of additional dump stations around San Diego. Nearest Dump/Water: Nearest dump at next-door Mar-Ta-Awa RV park ($15). You must register with Casino security on arrival. “Freebie” Site Review – Viejas Casino, Alpine (San Diego), CAįebruby libertatemamo 22 Comments Our spacious parking spot at Viejas CasinoĪ spacious, easy, comfortable, free short-term solution in the mountains just east of San Diego in southern CA.Ĭoordinate s: 32.843908, -116.698289.