We are working on this right now for our May 24th departure out of Seattle on the Edge (Celebrity). We’ve both got some merino wool layers we will be bringing. My husbands jacket (shell) is waterproof but mine is only water resistant. I think it will be ok as I suspect we will head for cover if we get caught in a downpour regardless.
shoes are where I’m struggling. I have a nice lightweight waterproof hiking boot but we aren’t really going to be hiking. We will spend about 10 minutes on a glacier but the rest of the time we will be walking around town, in a boat, plane, etc. my tennis shoes aren’t waterproof though, so I’d be risking ending up with wet feet. Still not sure what our best shoe plan is.