Welcome to King Arthur Mobile Estates all ages community park in the city of Riverside. home featues 2 bed 2 bath with a bonus room and Laundry room. The community park offers many amenities such as pool, spa, library, billards room. basket ball court and community recreational room. close to shopping centers, restarunts, schools, UCR college. access to 215 fwy, 60 fwy and 91 fwy.