We vacationed here last summer and are going again this year.
http://paradiseattwinbays.com/htms/home.htm
It's located on the east shore of Kootenay Lake ~30km north of Creston. Great sand beach right outside the door. Cabin is cozy and well appointed but not what I would consider luxurious. Here's the best part and it isn't a joke. The Neidermayer brothers have their summer homes about 200 yards south of the cabin. We plan on taking signs to taunt them with this summer.