I was thinking about something like a tundra waste land or glacier biome that could potentially be located in the middle of a winter biome somewhere almost completely made of ice with a mountain like structure to it and over water so you can swim under it and potentially have ocean mobs still be in the biome. There could also be land mobs like packs of wolves and posssibly polar bears and seals.
Interesting idea. Sounds more like an iceberg than a tundra or glacier. Care to make us a mockup of the biome? Pictures are always welcome. Also, periods are your friends. Run on sentences, not so much.
I like the idea actually, it looks like a nice editon to the game giving it a little more realism.