Hawaii Film Studio, also informally known as Diamond Head Studio or Diamond Head Stage, is a set and soundstage operated by the Hawaii Film Office, and has been used for filming many Lost episodes. It is currently the home of Grass Skirt Productions, the production company for Lost, which essentially leases the property in its entirety. The film studio is named after Diamond Head Crater, as it is located adjacent to its slopes. The mailing address is: 510 18th Ave. Honolulu HI 96816 USA This mailing address may also be used for Lost fan mail, c/o Lost or c/o Grass Skirt Productions.