Putting other A-list superyachts firmly in the shade is Jeff Bezos' magnificent Koru. With a length of 417 feet (127m) and masts that reach as high as 230 feet (70m), it's officially the world's largest (not to mention tallest) sailing yacht.

Amazon founder Bezos, who's worth $114 billion (£90bn), spent an estimated $500 million (£404m) on Koru, which was delivered in April 2023 from Oceanco's shipyard. The incredible boat is expected to cost up to $25 million (£20m) a year to run.

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