Hawaiian coral reefs are vibrant underwater ecosystems found around the islands of Hawaii. These reefs are primarily made up of hard corals, which create a structure that supports a diverse range of marine life. They provide essential habitats for fish, invertebrates, and other sea creatures, contributing to the overall health of the ocean. The reefs also play a crucial role in protecting shorelines from erosion and storm damage. However, they face threats from climate change, pollution, and overfishing, which can lead to coral bleaching and habitat loss. Conservation efforts are vital to preserving these unique ecosystems for future generations.