Fishouses are available. If you go to the lodging page of the website you can check availability there. Prices for all fishhouses are $60 a night minimum. Or $15 dollars per person if over four in a shack.
when you look at the availability page you can click on the Fishouse numbers for the pictures. They are all winter pictures yet, but you will get the idea of the layouts of the houses. Some will have AC in the summer months and you can inquire about that when booking if your looking at the July, August time frame.