First Cathedral

About this site

First Cathedral off Lanai island is a dramatic lava tube and cavern system whose domed main chamber is pierced by shafts of light filtering through holes in the rock ceiling, creating a cathedral-like atmosphere at 16 m. Spinner dolphins rest in the calm water near the entrance, and the surrounding reef hosts monk seals, eagle rays, and the endemic Hawaiian cleaner wrasse. The site was extensively surveyed by Dr. Sylvia Earle and remains one of Hawaii's most celebrated dives.

Best months to dive

Known hazards

Marine life