The cold has crept in, and water has frozen on the lakes. Still, it may be too soon in many areas to head out on the ice.

The Minnesota Department of Natural Resources is reminding everyone the ice in many parts of the state is still not thick enough for most recreational activities.

“We know people want to get out and enjoy the snow, but they shouldn’t put themselves or anyone else in danger by going out on the ice,” said Capt. Greg Salo, DNR regional enforcement supervisor.

Currently, layers of snow are insulating already brittle ice making it even more dangerous.

“The ice was not safe before Sunday’s snow and now it’s going to take even longer for it to become thick enough for travel,” said Salo.

Snowmobilers need to be extremely cautious, Salo said, because riders might not realize several trails take them over ponds, wetlands and lakes.

Last winter, four people died after falling through thin ice.

DNR clear ice thickness recommendations are:

—4 inches for walking.

—5 inches for a snowmobile or ATV.

—8-12 inches for a car.

—12-15 inches for a medium-sized truck.