SK/Shaman Duo leveling path

[tankmankels]

Hello everyone, my son and I have finally decided on what classes we would like to duo together. He's 8 and will be playing the SK and I am not 8 and will be playing the shaman. He has a decent grasp of the game and we plan on duoing around the Qeynos area. Probably do the classic Qeynos, BlackBurrow, Karanas for the first few levels. But once we hit, say, 20 or so, what would be a good place for us to duo that's not super insane? Anyone have any out of the way areas that would be slowish for one of our younger players?