Our place is not huge but we have a fully-equipped and spacious kitchen, lots of cozy rooms for guests, a comfortable open common area looking out on the lake, and a large deck for sitting in the sun. There is a TV room on the ground floor, with a couple of armchairs and 2 big beanbag chairs. This leaves the main floor for games, puzzles, reading, and socializing. The best view might be from the little reading loft at the top of the house.
In the summer there's a lovely little beach at the end of a short path, where you can take a couple of paddle boards out, push off with a canoe, or have an evening cocktail hour. Get the right people together and it's hard to go too wrong.