Ports and Passes is the most complete reference guide for tide and current information along our beautiful coastline. The book is easy to use and includes the majority of the primary and secondary tide and current data stations. The guide is adjusted for daylight savings time, a convenience over the Canadian Government publications. It includes tide and current prediction table coverage for the coastal area from Olympia, WA to Prince Rupert BC. Ports and Passes also includes information on local knowledge and other information useful to the cruising mariner.