I have been in Juneau transiting North twice, heading for Elfin Cove to jump the Gulf. It seems to me I went back the way I came in (out to the South) since it was a shorter and more direct transit through the islands anyway...
Unless I had a good reason to go North from Juneau, I wouldn't run it. If I did have a good reason, it's a long way around, and I would plan on a high tide transit. My bet is that there is plenty of water at high tide if you have a good reason to want to run that way.