As a woman in her bathrobe (about to take a dip in the chilly Baltic) waves from the end of the pier in Stockholm's archipelago, Silver Cloud's passengers and crew stand mesmerized by the beauty of this passage. "I knew it was meant to be beautiful," a man from the United Kingdom tells me, "but I didn't expect it to be this beautiful." If they haven't already, avid cruisers should put a cruise to or from Stockholm on their must-do list.