Join the San Diego River Park Foundation, the City of Santee Stormwater Program, and the Santee Historical Society for a day of hands-on fun and learning! Visitors will have the chance to explore a museum of Santee history, try their hand at creating rain, enjoy native plant gardens, and get dirty with some hands-on community serviceā¦ all in one place! This experience is an open house, so feel free to drop by anytime between 11:00am and 1:30pm, but we recommend you planning to stay for at least an hour. Scroll down for more details!