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Make it count with the Hawaiian Channel Swimming Association
The Hawaiian Channel Swimming Association (HCSA) is the official governing body of the ʻAlenuihāhā Channel Swim.
Effective April 1, 2025 HCSA's official position statement regarding the ʻAlenuihāhā, Kaulakahi, Kaʻieʻiewaho and Molokaʻi (Kaiwi) Channels:
In addition to considering sea and weather conditions and sun exposure duration, a strong recommendation supporting human safety can be made to structure channel swimming so that a swimmer transits through the zoogeographical habitat (the deepest portions of the channel) of Isistius spp. (cookiecutter sharks) during moonlit nights or daytime.
To learn more check out the recent interview with Steven Minaglia on Hawaiʻi News Now. Read the 2024 publicly available research about shark attacks in Hawaiian waters made possible by data collected by HCSA and analyzed by Maui Nui Swim here. Listen to the March 2024 interview on Hawaiʻi Public Radio here.
Effective May 18, 2025 HCSA recognizes the best practices developed by Steven Minaglia for crossing the ʻAlenuihāhā Channel.
Check out his early 2024 strategy to reduce cookiecutter shark bites.
"Dr. Steve's Picks" 2025 Season ʻAlenuihāhā Channel Swim Windows
Hosted by Maui Nui Swim
Steven Minaglia creator of the Maui Nui Swim suggests optimal ʻAlenuihāhā Channel swim windows based on experience and current science including an analysis of over 1000 channel crosses and attempts in Hawaiʻi. These windows are chosen with the swimmer's ability and safety in mind. For complete details click here.
Want to swim the ʻAlenuihāhā channel? Click here.
The Hawaiian Channel Swimming Association (HCSA)
Established 1984 (Original Logo)
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