You have to be really careful on that ice. Current flows make for some skinny ice. Lost a friend up there going through the ice many years back.
As for fish there's walleye, pannies, pike, for icefishing. The days of the lakers are long gone. Last one I know of was caught in the mid 70's by one of my cousins.
On softwater, the lake has weeks worth of water to discover. I'm a little biased. I grew up in the area, and my uncle's place was on the lake.