Northern Lights News Spring/Summer 2005 - 2006

Bore Tide

Turnagain Arm displays a fascinating natural phenomenon, a true tidal wave known as a bore tide that occurs when a rising tide enters a narrow and shallow basin. The Turnagain Arm bore tide can attain heights up to six feet and speeds of 10-to 15-miles per hour. Recently, extreme sports enthusiasts have taken to surfing the bore tides.

Note: The bore tide can be dangerous. To be safe, stay out of the water and away from the shore shortly after low tide.