Book excerpt: Florida's lighthouses guide shipping south from the St. Marys River to the tip of the Keys, then north to Pensacola Bay. See some of Florida's oldest and most historic structures, with diverse styles of architecture and daymark designs, including the black-and-white bands of the St. Augustine Lighthouse and the spider-legged iron structures along the Florida Reef. This guide has been revised and updated from previous edition, with new photos of renovated lighthouses. It discusses four lighthouses not included in first edition.