• 2017 LOOR video presentation. ... 1 month ago
    • LOOR 2017 Race Notification to the Press ... 1 month ago
    • 2016 LO300/600 Trophy Awards ... 2 months ago
    • LOOR Banquets for 2016: The Susan Hood and Lake Ontario 300 presented by driveHG; LOSHRS ... 4 months ago
    • 2016 LOSHRS Dalhousie Yacht Club information: ... 5 months ago
    • Report on the Grounding of SV Sorpresa during the 2016 LO300 Challenge ... 5 months ago
    • The Lake Ontario 300/600 Challenge Presented by driveHG.ca is Finally Here! ... 7 months ago


Similar to last year LO300 Challenge organizers are adjusting the initial part of both courses for 2017, removing Gibraltar as a mark and adding a mark offshore, southeast of the start, to be left to port – and a fresh new angle to think about as you plan your race strategy.

Long Course: Main Duck Island Course is a 300 nautical mile course on Lake Ontario, starting at Port Credit, then on to the Humberview Mark, Ford Shoal Buoy, Main Duck and Yorkshire Islands, Niagara Mark, PCYC Mark and the Finish Mark.


Short Course: Scotch Bonnet Island Course is a 190 nautical mile course starting at Port Credit, then on to the driveHG.ca mark, Scotch Bonnet Island, Niagara Mark, PCYC Mark and the Finish Mark.


Complete details for both courses and course marks are available in the Sailing Instructions on the Yacht Scoring Registration and Race Document Web Site and at the Skippers’ Meeting on Friday, July 14, 2017.

Please note that the above charts are for reference only, and that all mark placements and all waypoint references are approximate. Not for navigation.

The following sources for weather information are recommended:

NOAA’s National Weather Service Marine Forecasts

NOAA’s Weather Prediction Center

Environment Canada Marine Weather Forecasting

National Data Buoy Centre

NeXlab – NeXt Generation Weather Lab