Historians reflecting on the superyacht industry of the 2020s may well cite the 42.50-metre Callisto as a textbook example of what is meant by the term ‘pure custom creation’. Built to a precise size to match her berth in the Mediterranean, Callisto seamlessly balances the owners’ desire for a 21-knot-fast superyacht with specific accommodation and outdoor entertainment wishes based on their rich experience at sea. The result is an exceptional one-off superyacht for repeat clients which sets a new precedent for bespoke luxury cruising below 500GT.