Mary Lou Jones and Steven Swartz spent six winters between 1977 and 1982 exploring and learning about Laguna San Iganacio, its gray whales, wildlife, and the community of people that called this unique marine environment their home. Their initial surveys and descriptions of the lagoon and its use by gray whales were instrumental in the development of regulations and guidelines to conserve this marine protect area as a winter breeding ground for gray whales, and for sustainable ecotourism in the future. With its comprehensive descriptions of gray whale behavior and biology, its overview of the history and wildlife of this unique marine reserve, this book is the ideal visitor's guide to the exploration of the wonders of Laguna San Ignacio. Book jacket.