There is a recreation center located on the edge of the park that has basketball and tennis courts and multi-purpose courts. Also you'll find nice hiking trails located south of Golden Gate Heights Park.
Hawk Hill is owned by the San Francisco Recreation and Park Department.
Additional Info
Muni access:
6-Parnassus -- Quintara and Funston
28-19th Ave. -- 19th and Rivera
48-Quintara/24th Street -- 14th and Santiago