Aliso and Wood Canyons Wilderness Park is a major regional park in the San Joaquin Hills of Orange County, California in the United States. Comprising 4,500 acres of rugged coastal canyons, open grassland, and riparian woodland, the park borders the suburban cities of Aliso Viejo, Dana Point, Laguna Beach, Laguna Hills and Laguna Niguel and lies within a portion of the ancestral homeland of the indigenous Acjachemen people.