Everything one could possibly want to know about Great Lakes diving is contained on over 400 pages. Included are the locations and descriptions of over 900 dive sites -- about 800 of them shipwrecks, with each vessel's history and a description of its dramatic demise. This diving guide covers the St. Lawrence River, all five of the Great Lakes (Lakes Ontario, Erie, Huron, Michigan and Superior), all inconnecting waterways and inland dive sites throughout the Great Lakes region, for all levels of divers from novice to technical diving. Also in this book are features on "The Hunt for Great Lakes Shipwrecks," "Great Lakes Marine Conservation," "The History of the Zebra Mussel Invasion," as well as information about scuba dive shops and charter boats! This massive book is a clearinghouse for Great Lakes scuba diving information which divers from all parts of the country are finding increasingly appealing for planning their dive trips. This fact-filled book is a must-have for anyone contemplating scuba diving in the Great Lakes.