I think of using this method of slowing & quieting them down quite frequently! A little hypothermia never hurt anyone! :) If they're really on my nerves a quick toss in the pool does the trick quite nicely (if they can get through the ice!)
Apparently, they forgot the key to the cabin and are running back to the van to warm up. Therefore, one might simply tell them that next time...Just run around & around & around the cabin until they're "all in!" I know...I know...It's an old expression from my grandparents era,...but try to enjoy it anyway. Thanks. ;)