Here's our list of essentials: wool clothing, water-proof shoes/boots, comfortable athletic shoe(s) for exploring ports or bearing longer walks off ship and a wool hat or fur hat for colder climates. We recommend wearing a pair of rain boots that can be worn in the water. If you plan to explore the outdoors, wear good walking shoes. When packing for an Alaskan cruise, think about what kind of weather you will have on the boat as well as when you are off the boat.