Mance Buchannan Park (formerly River Park) was built in 2008 as a joint venture between the city of Oceanside and the school district. The Park occupies twenty-nine acres and runs along the San Luis River. A middle school also shares the Park’s space.
Buchannan Park has a community center operated by the Parks and Recreation Department, bike and jogging lanes along the river and a modern play structure. Dasani Blue Bikes rents vehicles to visitors.