Honopū Valley and Beach, along the Nā Pali Coast, is a densely jungled valley thought to be the last home of the Menehune, earning it the moniker, "Valley of the Lost Tribe." The beach is known for its distinctive natural arch, which at approximately 90-feet, is the tallest in Hawai'i, and the secluded .25-mile stretch of beach, known as Cathedral Beach. The name Honopū means "conch shell", deriving from the conch-shell like sound ts arch makes when hit by winds from the north.
The hidden valley is believed to be a spiritual location and the source of many Hawaiian myths. Local chiefs were often buried on the surrounded cliffs. It was believed that a late chief's bones held supernatural powers that if found by others could be used for evil. When a chief died, a warrior was chosen to transport their bones to a hidden location in the cliffs and then sacrifice themselves in order to ensure secrecy of the location.
Honopū Valley is perhaps most famous for its appearances as a stand-in for Skull Island in John Guillermin's 1976 remake of King Kong, starring Jessica Lange and in the 1998 movie Six Days Seven Nights, starring Harrison Ford and Anne Heche.