 In 1999 Sea Containers acquired the majority of shares in classic Finnish shipping company Silja Line.Silja were at the time operating traditional ferries on the highly lucrative route between Helsinki and Tallinn, the capitals of Finland and Estonia respectively, but had no fast ferries operating on the route.Sea Containers decided to set their extra SuperSeaCat on that route, and from 17 April 2000 onwards SuperSeaCat Four sailed on the route under Silja Line SuperSeaCat brand.