Nights are either short or nonexistent when you sail the North Sea in early summer, so you see more in Ireland, the Isle of Man, UK, Norway, Faroe Islands (Denmark), and Iceland. This 26-day cruise winds throughout the northern expanses and smaller ports throughout UK and Norway before touching on the remote Faroe Islands and eventually circling all of Iceland, giving you plenty of time to explore storied Scottish castles in Portree, sample unique goat cheeses in Geiranger, Norway and ride charming Icelandic horses close to the Arctic Circle in Akureyri, Iceland.