There is no such thing as safe ice. There is more than one thread on Iceshanty.com right now about icefisherman falling through the ice, and at least a couple where they did not make it out alive!
Know your surroundings on the ice. Educate yourself, and your friends and family on ice saftey. Here is a link that could save your life.
Ice saftery videos...watch all 3Thin ice is all around us and if you dont know where it is ,it could be all around you too