Labyrinth

This dive site, known as Labyrinth or by local names such as Dave’s Cave, The Maze, Croc Caverns, and Nikao Tunnels, offers a unique shallow tunnel and cavern system beneath the surf zone of Rarotonga. It stretches from the Runway to Black Rock and requires very calm sea conditions for safe exploration. Divers navigate through interconnected passages, revealing interesting rock formations and a sheltered environment. The site’s multiple names reflect its local familiarity and the intriguing nature of its underwater topography. The Labyrinth is home to a variety of marine life. Divers can frequently spot crayfish (lobsters) hiding within the crevices, along with the distinctive lionfish. The open areas outside the tunnels, and sometimes within, host pelagic visitors such as elegant eagle rays and the occasional whitetip reef shark. Various sea shells are also commonly observed, indicating a healthy ecosystem within and around the cavern system. The best time to visit Labyrinth is during periods of extremely calm seas, as the site's location within the surf zone makes it otherwise inaccessible or dangerous. Divers should possess good buoyancy control and comfort in enclosed spaces for cavern penetration. Freedivers will find the shallower sections, with an average depth of around 9 meters, particularly appealing for exploring the entrances and initial parts of the tunnels, provided surface conditions are optimal.