You'll hear from robomatic, bet and enjay no doubt- I live much farther south in Alaska than they do - but I believe that May in Alaska generally is lovely. In Southeast, mid-April to the end of June is our driest, brightest weather. Most likely, farther north their bright weather comes along a little later than ours so May should be good.

You say "shipping up" to Seward or Whittier and then driving to Anchorage- What does 'shipping up' mean in this connection? Cruise lines are starting their tourist seasons earlier practically every year; May 4th is the earliest date I've seen but most of the lines don't start until later in May.

"Sea conditions up from Bellingham?" The ocean can be rough in May, just as it can be in September- but that's not necessarily the case with every trip.

If you come to Juneau again, allow more time, OK? We'll fete you.