Carl (tourism, hospitality, and sport; Griffith U., Australia) and Erlet (geography, U. of Reading, Britain) document trends and challenges in the growing branch of tourism that seeks to appreciate and respect marine life in all its forms. They discuss the context, resources, attractions, and activities; the primary stakeholders and interests; and planning agencies, management structures, networks, and initiatives. A major theme is the necessity to integrate the debates on sustainability and political economy. Distributed in the US by Oxford University Press. Annotation c2007 Book News, Inc., Portland, OR (booknews.com)