This 5,800-acre park has natural and developed areas and more than 40 miles of trails and camping at Kumeyaay Lake.…More Other points of interest include a Visitors and Interpretive Center and amphitheater. It is also the site of the Old Mission Dam, which was built to supply water for Mission San Diego de Alcala.</p> <p>Many guided hikes, classes and other events are held at the park, you can find their events calendar here: <a href="http://www.mtrp.org/events.asp">www.mtrp.org/events.asp</a></p>