Kaneana Cave, also known as Makua Cave, is a large, ancient sea cave located on the leeward coast of Oahu near Makua Beach. Steeped in Hawaiian legend, the cave is believed to be the home of the shark-man god, Nanaue, and is named after Kane, the Hawaiian god of creation. The cave's dark, expansive interior creates a mysterious atmosphere, attracting visitors intrigued by its cultural significance and natural beauty. The site offers a unique blend of mythology and nature, making it a fascinating stop for those exploring Oahu's west coast.