The world’s most environmentally friendly large passenger ship, 'Viking Grace', delivered by STX Finland, & maiden voyage tickets a sell-out. Apart from its unique green credentials, the vessel’s two standout features are its LNG-powered Wartsila engines and its safe return to port compliance technology. Such was the vessel’s much anticipated arrival that tickets for its maiden voyage from Turku to Stockholm were sold out months in advance. Interestingly, Viking Grace, with its almost emission-free performance, will be ideally suited to the sensitive and delicate waters of the Baltic Sea.