Lake Superior Marathon Swimming Resource Guide
Rules, Ratification & Governance
Following a standardized framework for your swim ensures safety, transparency, and official recognition within the global marathon community.
- Marathon Swimmers Federation (MSF): Dedicated to advancing the sport of solo long-distance open-water swimming.
- Solo Swims of Ontario: Regional oversight and Great Lakes crossing standards.
- World Open Water Swimming Association (WOWSA):
- An international association organizing, promotion and recognizing open water swimming.
- Podcast: Organizing Independent Solo Ultraswims
- Technical logistics for self-supported swims.
Real-Time Weather & Marine Conditions
Superior’s conditions change rapidly. Use these tools to monitor wind and waves before diving in.
- Marine Forecasts: Open Waters of Lake Superior
- Lake Superior West Buoy: Real-time wave height, frequency, and atmospheric data.
- Windy.com: Lake Superior Visual Forecast
Water Temperature & Quality
Managing thermal exposure is a primary challenge of the North Shore. Monitor current and predictive surface temps to time your crossing.
- FVCOM NOWCAST/FORECAST: Experimental Predictive Modeling
- Seatempature.org: Current Lake Superior Surface Temps
- Historical Data: Seasonal temperature benchmarks for long-term planning.
- Swim Guide / Swim Drink Fish: Water Quality & Bacteria Monitoring
Route Planning & Navigation
Precise navigation is critical. Use these resources to map your line and identify accessible launch points for support vessels.
- Google Map of Lake Superior: Use the “Measure” tool for exact point-to-point mileage.
- Boat Launch Directories:
News & Community
Connect to information and posts about our marathon swimming community.