The annual Port Huron Float Down, scheduled for August 18, is expected to draw thousands to float down the St. Clair River, despite strong warnings from the U.S. Coast Guard and Canadian officials. The Coast Guard has declared the event unsanctioned and has advised against participation, citing safety concerns and previous incidents, including drownings and participants being swept into Canada without proper identification. A temporary safe zone will be established to mitigate risks, and the Coast Guard emphasizes the importance of wearing life jackets, having a paddle, and filing a float plan. Officials have noted that this event presents numerous dangers, including medical emergencies and trespassing across the international border. Organizers state that first responders will be on-site, but no official representation for the event has been established to coordinate with the Coast Guard's safety measures.