What is the Opuhala Project all about? Opuhala was the ancient Hawaiian goddess of corals and spiny creatures. We have chosen this name to represent our project to study the influence of fluctuating sea temperatures on the growth and health of corals around the world, and also to compare the in situ data with satellite-measured data in an effort to improve satellite algorithms. Three different types of coral reefs, fringing, barrier, and atolls will be monitored at 5m, 10m and 15m depth, where appropriate.