Ports and Passes - the Pacific Northwest Tide and Current Guide, covers all the waters from Olympia WA to Glacier Bay AK.
The 2022 Edition has been re-organized to make it easier to use and to find any location you are interested in. This video shows you how to use the book to find tidal heights and current speeds in more than 1,000 locations coast-wide. This presentation (in PDF format) and worksheets for calculating tides and currents at secondary stations are also available on our resources page.
Johnstone Strait, BC, and the associated passages in the Discovery Islands archipelago of British Columbia is one of the most complex tidal current regimes in the world. This video covers a typical 24-hour period in the area. Timing is drawn from Canadian Hydrographic Service data. Slack water, either Turn to Flood or Turn to Ebb, is shown as an "O". You will notice that at certain times, some of the passages are flooding, some are ebbing and others may be slack. This video is not to be used for navigation. It is intended to demonstrate the complexity of the system and the challenges that mariners and recreational boaters alike will find in the area. For detailed information on tides and currents in the area, see Ports and Passes - the Pacific Northwest Tide and Current Guide.
Ports and Passes isn't just a tide and current guide. Ports and Passes branded products also include Current Atlas Tables for use with the Canadian Current Atlas, logbooks and maps of Desolation Sound and the Broughton Islands.
Desolation Sound and the Discovery Islands is a boater's paradise. Plan your cruise to this area with our Ports and Passes Desolation Sound and Discovery Islands map. It's more than just a map. The Broughton Islands and Mainland Inlets is an adventure every boater should visit, at least once, plan your cruise to this beautiful area with a Ports and Passes Broughton Islands map.
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