Lake Ouachita State Park
Lake Ouachita State Park is a public recreation area located northwest of Hot Springs, on the eastern side of Lake Ouachita, which at is the largest man-made lake located entirely within the state of Arkansas. In addition to its recreational offerings, the park preserves the site of the historic Three Sisters springs which were once touted for the curative properties of their mineral waters. Activities and amenities. Park amenities include a visitors center, restaurant, cabins and campsites, marina, swimming area, hiking trails, boat ramps, and interpretive exhibits.