Support the SeaDoc Society by purchasing an extraordinary bathymetric map of the San Juan Islands. This map shows not only land formations from satellite imagery, but also seafloor depth and features. This is the 2nd edition of the map, updated with new high resolution seafloor imagery. Map overlay includes ferry routes, state parks, airstrips, marinas, lighthouses, and other features of interest. This map was produced in cooperation with the SeaDoc Society and $4.00 of each map sale goes to help fund research and conservation projects in the area. Printed on premium 80# cover stock. For more information and to purchase, visit TahoeMaps.com.