Marnix Hoekstra and Bart Bouwhuis, the co-creative directors of yacht design studio Vripack, design vessels for some of the world's wealthiest clientele. Courtesy of Vripack Vripack's co-creative directors, Marnix Hoekstra and Bart Bouwhuis, design luxury superyachts. Over their decades in the business, clients' priorities have shifted. From office spaces to gyms, these are what superyacht clients are requesting. A custom superyacht is among the most expensive assets anyone can own, costing hu