Spectacular seas
Hurtigruten has an Arctic Highlights voyage entirely within the Arctic Circle. From Tromsø, directly beneath the Aurora Oval (the epicentre of Northern Lights activity), it rounds the North Cape, the northernmost point in mainland Europe, to Kirkenes on the Russian border, where at longitude 30°E, you are further east than Istanbul or St Petersburg. From £849pp for five days half board, including flights and one night in a hotel B&B. Details: hurtigruten.co.uk