VIDEO: Bore Tide Surfing in Turnagain Arm, Alaska People riding the Turnagain Arm bore tide. pic.twitter.com/DRpsZLoCCd โ Brian Brettschneider (@Climatologist49) May 14, 2021 Twitter user Brian Brettschneider shared a video of surfers taking advantage of and surfing a bore tide in Alaska.ย A bore tide occurs when seawater rushes into a river or inlet. Bore tides come in after very low tides created by the full or new moon. […] Surf Clay Malott | May 14, 2021 0 Comments