It’s so interesting that you can create a source of heat in freezing temperatures from ice! And then you can boil some ice and get pure drinking water. This is certainly a basic survival skill:
How to make Fire by ice from the creek , clear ice is almost as much of a challenge as making an ice lens! It is interesting that ice wants to be clear. When water molecules freeze, they like to form a regular crystal lattice, Put a little black powder in by tender bundle, to see fast flame, you don’t need black powder it will still work, Basic Wilderness survival bushcraft