The problem with everyone’s favourite desert island fantasy is that peaceful, unspoiled beaches never stay undiscovered for very long, with even the most secluded of spots becoming overrun by others with Robinson Crusoe aspirations. Cue the collaboration between Monaco ship-builders Wally and luxury-brand Hermes for the £90 million Wally Hermes Yacht.

A three-level, 58 x 38 metre yacht, the boat houses twelve guests and twenty crew in a spacious and, as you'd expect from Hermes, supremely stylish interior. But it's the 30-metre ‘beach’, which offers panoramic views of your chosen destination, that explains the Why's bottom-heavy shape and sets it apart from your average superyacht. The extra-long stern has been designed not only to replicate a stretch of private beach in shape, but to physically calm the water behind the boat, protecting guests from any annoying waves.

An inbuilt helicopter pad enables a quick departure if the yacht’s optimum 12 knot speed doesn’t suffice. With a 25 metre swimming pool in the bow, however, along with a library, music room, cinema and spa, you’d be forgiven for wondering why they’d bothered at all with an escape route. Then again, that’s what the captain of The Titanic thought. www.why-yachts.com

Words by Guy Pewsey