One of Heesen’s latest Aluminium Class of yachts, the 49.8-metre Aquamarine, has been spotted out for sea trials. Heesen worked side by side with the hydrodynamic technicians at Van Oossanen Naval Architects to create a 12% more efficient hull and a 2.15-metre draft, which is ideal for island hopping and exploring shallow bays. Photo: Tom van OossanenShe features a Japanese-inspired interior design by Cristiano Gatto, accommodating up-to 12 guests, including one grand master stateroom and four spacious guest suites. For her exterior, Omega Architects designed a raised aft deck to incorporate a full-height tender garage, which also doubles as a luxury waterside beach club. Photo: Tom van OossanenAquamarine’s two MTU 16V 4000 M65L diesel engines operate alongside a Selective Catalytic Reduction (SCR) to reduce emissions, creating an eco-friendlier, fast-cruising, sub-500 GT motor yacht, that is Tier III compliant. She has a maximum speed of 23 knots.