Alaska is very much a scenic cruise destination with lots to be enjoyed from the ship. Most ports e.g. Ketchikan and Skagway are typical ports where the ship is docked centrally in the town itself. If you want more info, then please share your ports of call with this forum. Also, look out for ports in the itinerary which may be classed as tender ports since this can make access to the shore more difficult for the infirm but not necessarily impossible.