For future reference, anyone - we cruised AK May 2001 on Cruise West, so we were outside on deck much of the cruise. We had bought Goretex rain pants and used them a lot!! THey make great windbreakers, and are made to layer over other pants. We used them against rain onshore in Ketchikan, but mostly against wind. If you sail AK in May it is likely to be pretty chilly, and if you like to be outside enjoying the fresh air & scenery, you may want them. On larger ships there are more windbreaks built in, but if you are the wind-in-your-hair type, get a rainsuit or equivalent!