Promontory Water Play Area is a popular water park in El Dorado Hills, California, offering 5 attractions for visitors of all ages. Looking for Promontory Water Play Area tickets, hours, and visitor reviews? You'll find everything you need below to plan your trip. Searching for a waterpark near you in El Dorado Hills, California? Promontory Water Play Area is one of the closest local options for families and visitors looking to cool off during the warmer months. The park features 1 family attraction and a dedicated kids area with 4 splash features. The park is well-suited for families and caters to a range of age groups. Interactive water sprays, various splash pads for younger children, misting areas for cooling off. For the best experience, plan your visit during early morning or late afternoon on weekdays to avoid the busiest periods. Promontory Water Play Area is widely considered excellent value for the experience it delivers. Visit during weekdays for a quieter experience, arrive early to secure a good spot, and bring snacks and towels as there are no food services or changing facilities.