I've been through there a few times, usually on my way to Nakusp for events. Pretty, plenty to see/do off the bike if you want, great riding in terms of scenery and roads. 3A to Balfor, East to 31 to Kaslo, North to 31A to New Denver and up 6 to Nakusp, then back South on 6 to Nelson is a nice ~day ride with time to stop and smell the flowers.