This map is intended as a living, evolving repository of marine biodiversity in Hanauma Bay, O‘ahu. It builds on the Digital Coral Ark’s mission to compile longitudinal photographic and video documentation of coral reefs via community contribution and archival research. 

We begin with the collections contributed by John P. Hoover, whose decades of photographic work and detailed mapping of Zones and Areas inform much of the baseline spatial framework in Hanauma Bay. 

To that foundation, we’ll add species records (corals, fishes, invertebrates, etc.) from the Digital Coral Ark collection — each mapped with date and location within the bay, when available.

Over time, the map will expand — layering in newer contributions from citizen scientists, researchers, and divers.

We hope this map, and the Digital Coral Ark behind it, become both a tools for public engagement and resources for monitoring ecological change, spotting range shifts, and helping guide reef restoration efforts for many years to come.

NOTE: Use the search bar to explore species by date, common name, or contributor. Use the Zone and Area toggles to see which species are in each. The map itself is not clickable. This map can be viewed on mobile, but it’s best suited for desktop or laptop. Enjoy the fish!