They offer hotel rooms and camp sites right on the lake. The pool and whirlpool/hot tub are awesome and not overly crowded.
Update, April 2018: I stayed here again, this time in a King suite. I enjoyed it thoroughly and it still has my favourite pool and hot tub of any hotel I've stayed at before or since. The location on Lake Superior is splendid, even when the bay is frozen. This is still a solid five stars for me.