Follow in the wake of Scott and Nansen by booking a cruise on the new Silversea expedition ship, Prince Albert II. This state-of-the-art vessel set off for the Arctic last month but will head to the opposite pole later in the year for the summer in the far south. Luxury on board combines with pure adrenalin once the ship docks, as it visits some of the world’s most remote landscapes and enters tiny ports where few cruise ships have been before. This is not soft adventure: it is full-scale exploring, from a base that is super-luxurious, with every high-tech facility.