Gusty northerly winds kept many people out of the water Sunday for the Port Huron Float Down.
A few hundred ventured into the St. Clair River for the unsanctioned event, which in the past saw up to 4,000 participants.
Ahead of the event, the US and Canadian Coast Guard issued a joint statement, warning about the dangers of participating in the 12 kilometre float down from Lighthouse Beach in Port Huron to Chrysler Beach in Marysville.
In 2016, the float down made international headlines when 1,500 U.S. residents, many without identification, were pushed across the river to Canada on strong winds.
According to Environment Canada, northerly winds were gusting up to 50 kilometres an hour Sunday.
Members with the Sarnia Police Service (SPS), Sarnia Fire Rescue, Ontario Provincial Police (OPP), RCMP, Canadian Border Services (CBSA) and Lambton County EMS all took part in the coordinated response effort.
Vessel traffic on the St. Clair River was restricted from the Blue Water Bridge to the upper end of Stag Island during the event.