A unique hotel off the South Coast of England with a rooftop hot tub and access by private boat The historic Spitbank Fort may not have fulfilled its original purpose as a naval defence but it turns out it was destined for far more glamorous things. Now one of the most exclusive and unique hotels in the British Isles, this private island playground features spa facilities, a Laurent-Perrier Champagne bar and eight luxuriously converted rooms. With its own departure lounge in Royal Clarence Marina, the experience starts before you’re even on the water. There are three bars at this five-star retreat, alongside a wine cellar and games rooms. Up on the decked roof, there’s a fire pit, heated pool, sauna and restored red lighthouse with an observation deck for surveying those far-reaching views of the South Coast and the Isle of Wight.