GRCA warns of dangerous thin ice in its watersheds
Posted Dec 10, 2025 10:12:26 AM.
Last Updated Dec 10, 2025 10:44:07 AM.
The Grand River Conservation Authority (GRCA) is warning of the dangers of thin ice in local rivers and reservoirs in its watershed.
The authority said that, due to the earlier start to the wintry weather, it’s allowing thin layers of ice to form on some of the local waterways.
“Recent cold temperatures and early-season snowfall have resulted in the formation of thin ice on local rivers, reservoirs, ponds, and lakes across the watershed,” said GRCA. “While ice may appear to be forming earlier than in previous years, ice conditions remain highly unstable, unpredictable, and unsafe for any type of recreation.”
It warns that it can often be difficult to distinguish between thin and thick layers of ice through sight alone, leading many to venture out and encounter dangerous situations.
Those risks can often become escalated when people, including children, walk along the sides of those water systems.
“The public is encouraged to exercise extreme caution around all local waterways and is strongly advised to stay off all ice at this time,” GRCA stated. “Parents and caregivers are urged to keep children and pets away from shorelines and off frozen surfaces, as conditions can change quickly.”
It said in a statement that the banks along rivers and creeks are slippery around this time of year. Then, when combined with the cold, fast-moving currents, it can pose a serious risk.
“It is important to note that river systems, reservoirs, and water control structures experience fluctuating water levels and variable flows that prevent stable ice formation. While colder temperatures allow for some ice formation, daily changes in temperature, wind, precipitation and underwater currents greatly affect ice conditions.”
While those watersheds aren’t a good option for enjoying seasonal recreational activities, GRCA points to other options instead.
“Select Grand River Conservation Areas, including Belwood Lake, Guelph Lake, Pinehurst Lake, and Shade’s Mills, are monitoring ice conditions and will offer ice fishing if conditions permit. Many watershed municipalities provide safe outdoor skating and recreation options.”
