There is no such thing as 100 percent safe ice.
Ice thickness is highly variable at this time of year, and water can be so cold that an unexpected fall into water can be extremely dangerous.
Lakes and ponds that appear frozen are inviting spots for ice skaters, snowmobiles, and children looking to explore. But ice thickness varies greatly at this time of year. Measure ice thickness at least every 150 feet before walking on it. There must be at least 4 inches of solid, clear ice for safe walking. Even if the ice is thick enough for walking, ALWAYS WATCH CHILDREN CLOSELY. Talking with children about ice safety now will help them stay safe.
The DNR does not measure ice thickness on Minnesota lakes. Your safety is your responsibility.
For more information on ice safety, please visit the MN DNR’s website: https://www.dnr.state.mn.us/safety/ice/index.html
General ice thickness guidelines provided by the Minnesota Department of Natural Resources