Question: what do you buy the person who has everything, even a private island? Answer: a vehicle that will allow them to reach previously inaccessible parts of it and experience a new world of animal life. There are now several personal submarines on the market, one of the most recent arrivals being the C-Quester.

Featured by www.trendhunter.com, the submersibles can dive up to 150ft and can operate for 2½ hours between charges. And there is little danger of getting trapped underwater because the C-Quester supplies up to 36 hours of emergency oxygen. The cruising speed of 4 knots might seem a little pedestrian but when you’re underwater there’ll be plenty to see.