Hawaii’s ‘Iron Reef’ Project Aims to Save Corals

This project will create a part-natural, part-artificial reef to help reduce wave energy and host an engineered ecosystem. One of those large-scale experimental responses — an iron reef — will be built in Hawaii and cost about $25 million. The first deployment of this five-year project will include construction of a 50-meter-long prototype reef off the Marine Corps Base on the Mokapu Peninsula on Oahu.