Maptech San Juan Islands Waterproof Chartbooks  , 12 inch  x 17 inch , 23 chart pages Completely updated. Newest edition. 3rd edition Complete coverage of Point Conception to Complete coverage of Whidbey Island and Bellingham to Boundary Pass 23 chart pages, GPS waypoints, Lat./Long. grids, courses, ramps, and marinas 12" x 17"