Sheraton Caverns – Hawaii – Kauai & Niihau

Site Overview

Sheraton Caverns off Kauai's south shore features dramatic lava tube caverns formed by ancient volcanic activity creating underwater arches, tunnels, and chambers that harbor green sea turtles, whitetip reef sharks, and diverse marine life. The lava tubes range from shallow swim-throughs to deeper chambers requiring dive lights, with sunlight filtering through ceiling openings creating dramatic light effects. Whitetip reef sharks rest inside the caverns during the day while green sea turtles frequent the cleaning stations near the tube entrances. The surrounding reef supports healthy coral communities and endemic Hawaiian species in clear water with excellent visibility. The site offers multiple dive profiles from shallow beginner-friendly tubes to deeper advanced chambers. The lava tubes at Sheraton Caverns represent some of the most accessible underwater cavern systems in the Hawaiian Islands with multiple entrances and exits providing natural light throughout. Marine scientists have documented unique communities of cave-adapted invertebrates on the deeper chamber walls including species that thrive in the reduced light conditions. The whitetip reef shark population uses the caverns as a nursery area with juvenile sharks frequently observed alongside adults. The site's proximity to Kauai's south shore allows easy boat access while the multiple chambers provide diverse dive experiences on repeat visits.