In the nearshore waters of Alaska's remote and pristine Aleutian Islands is an astoundingly diverse and beautiful undersea world that is captured here for the first time, through color photographs taken by research divers. The photographs in this book convey the awe-inspiring experience of the divers as they encountered the spectacular beauty of the underwater Aleutians ecosystems. Together with an accompanying text that provides natural history information and an overview of the geography, geology, and oceanography of the 1,200-mile archipelago, the images are a powerful vehicle for science education, making apparent the need to preserve the region's natural splendor.