Ports and Passes is used by recreational boaters and professional mariners throughout the Pacific Northwest waters, including Puget Sound, the San Juan Islands, the extensive waters of British Columbia, and Southeast Alaska. Passage through tidal rapids and narrow channels at slack water is essential when cruising in U.S. and Canada Northwest waters. Published annually to include the year’s tidal station predictions and secondary stations, Ports and Passes provides the information necessary for planning your passages.

More than just a tide guide, Ports and Passes also contains experience-based local knowledge, explains how tides and currents work, how to use secondary tables to calculate tides and currents, and other useful information. By helping boaters be more confident in understanding the complex tides and currents of the Pacific Northwest, we aspire to provide boaters with the information needed for an enjoyable, worry-free cruise.