Hawaii offers underwater adventures for all, from snorkelers to divers, from the novice to the expert. Whether you're diving through wrecks or observing tropical marine life, this guide will take you to the best sites around the five dive regions - Oahu, the Big Island, Maui County, Kauai & Niihau, and Midway Islands. In This Guide: Detailed dive information to 67 sites. Full-color photos throughout. Maps of dive regions. Guide to marine life. Travel logistics and topside attractions.