What was the name of Robin Masters' estate on the TV series "Magnum P.I."?

The name of Robin Masters' estate on the 1980-1988 U.S. TV series "Magnum P.I." was Robin's Nest. In the series, Thomas Magnum (Tom Selleck) is a private investigator and Head of Security for Robin's Nest. During the final seasons, Magnum begins to suspect that Higgins is Robin Masters. Jonathan Higgins (John Hillerman) is a stuffy Englishman who runs the Hawaiian estate of the wealthy absentee owner, Robin Masters.

On the show, Higgins mostly tolerates Magnum's presence on the estate. Most of the time Magnum is a private detective whose cases frequently have a humorous overtone and a good amount of suspense and danger. To help him live his life and perform his job as a detective, Magnum has free use of (1) the guest house at Robin's Nest and (2) a high-performance car, a Ferrari 308 GTS. Magnum is lucky because he is a former Navy SEAL who has found a new purpose for his military skills and training. He has now become a slick private investigator who has a job in Hawaii.