Mount Desert Island and Acadia National Park have been described as the climax of the coast of Maine. Millions are drawn every year to the stunning beauty of this rocky landscape of spruce-fir forest and granite islands. Some, like nature writer Christopher Camuto, never stop coming back. In Time and Tide in Acadia the author draws on years of walking Mount Desert's summits and shorelines, canoeing its marshes, kayaking its tidal waters,...