In my experience we always take too many clothes and come home with several unworn items!!! We took layers when we did the fjords....vest tops, blouses, micro fleece and cagoule with cropped trousers for me and John wore polo shirts with jeans/chinos with jumper for when it was chilly and also cagoule. One pair of shorts each just in case (not worn in July!) I usually take black silky trousers and various tops (perhaps with a bit of glitter) for evenings and John takes a dark suit rather than DJ with bow tie for formal or ordinary tie for other less formal or polo shirts for casual dining. Hope this helps a bit!!