Our recent stay was just two of us, and could easily accommodate a much larger party. The main floor has three bedrooms and two full baths. The lower walkout level has two bunk beds, a full-size bar area, TV entertainment area, full laundry room and half bath. Lots of outdoor gathering spaces and room for outdoor games. Beautiful views of the lake from multiple points inside the house and out. While we didn’t take advantage of the pontoon boat, hot tub or gas grill, we did use the fire pit and canoe. The owner, Rebecca, was very easy to communicate with. She left us a “house” book full of useful info and a delicious bottle of wine.
Sinissippi Lake is fed by the Rock River. Great for boating, bird watching and the never-ending antics of the carp. Yes, carp. Large, voracious non-native carp that have invaded a lot of Wisconsin lakes. So the takeaway here is don’t expect good fishing. We caught three bullhead catfish (ick) and nothing else. Wisconsin DNR website says there’s panfish and bass in that lake, but I’m dubious about that claim. Water is extremely murky.
Birdwatching is very good. We saw loons, eagles, ducks, herons and amazing American White pelicans! The lake has 13 islands, so boating would be an adventure in discovery.