Mile Square Golf Course and Banquet Facility 10401 Warner Ave, Fountain Valley, CA92708 Located in Mile Square Park, the Mile Square Golf Course and Banquet Facility is one of Orange County's most popular…More golfing facilities. The two challenging courses here were designed by architect David Rainville. Professional golf instruction is available from PGA members for groups, juniors and individuals. At the pro shop, customers can find a full range of golf apparel and professional gear. The club house also serves as a banquet facility for weddings, quinceaneras, proms, holiday parties and other events. The large facility can accommodate as many as 700 guests, with various packages and menus available. Wedding ceremonies can take place at the adjacent Wedding Garden.