The San Dimas Dog Park is located at Horsethief Canyon Park at 301 Horsethief Canyon Road. The park is open from dawn to dusk. The park is a result of hard work and planning by the City Council, the Parks and Recreation Commission and staff, as well as valuable input from residents. The one-acre dog park includes two separately fenced areas designated for large and small dogs. This unique grassy area allows dogs to socialize and exercise in a safe environment without the restrictions of a leash.