The Coral Triangle, straddling the confluence of the Indian and Pacific Oceans, harbours the greatest biodiversity of marine life on the planet. It is home to a wondrous variety, including 75% of the world's coral species and around 2500 species of fish. The biological and environmental diversity is driven by the volcanically active and complex geology of the so called 'Ring of Fire'. Habitats range from underwater slopes of volcanic black sand to extensive coral reefs in atolls and vast calderas. While clearly vulnerable to increasing global threats such as climate change, pollution and overfishing, the Coral Triangle currently features some the richest coral reefs in the world. With stunning photography supported by an engaging and accessible text, this book highlights and celebrates this biodiversity along with the underlying message that it needs our care and protection before it is too late.