was an instant success, and 1951, Johan van Oldenbarnevelt was put into dry-dock in Amsterdam for refitting. She was refitted as a one-class ship with berths for 1,414 passengers. Her lounges were restored to their original and additional passenger facilities were installed. Eight lifeboats were added, bringing her total number of boats to 24. On 23 January 1952 she left for Australia but was forced to return to Amsterdam after four small fires were discovered aboard. The fires were quickly extinguished. Arson was suspected, but no suspects were ever arrested. In 1958 Johan van Oldenbarnevelt was refitted again, reducing her berths to 1,210. The Amsterdam Dry Dock Company completed the refit in three months at a cost of A$800,000. Three luxury suites were added, as well as a nightclub, cinema, gift shop, promenade lounge and second swimming pool. All public rooms were refinished and restored. Her main mast was moved to atop the bridge, and her decks were extended aft. Her funnels were raised, given rounded tops and painted yellow and black. Her black hull was re-painted grey. On 2 April 1959 the ship was assigned to her new port, Southampton, England. She offered round-the-world service, making stops in Australia, New Zealand, Bermuda and New York City. She was now a cruise ship instead of an ocean liner. Johan van Oldenbarnevelt left on her last round-the-world voyage for the Netherland Line on 30 June 1962. She arrived in Sydney, Australia on 3 February 1963 and was decommissioned by the Netherland Line that day, ending a 33-year career for that shipping line. She then sailed for Genoa, Italy, and arrived on 7 March 1963. TSMS Lakonia On 8 March 1963 Johan van Oldenbarnevelt was sold to a Greek company, the Shipping Investment Corporation. Her decks and public rooms were renamed and the aft swimming pool was enlarged. 12 extra cabins were added, and air conditioning was installed throughout the ship. Her hull was painted white, and her tonnage increased to . She was renamed TSMS Lakonia. Ormos Shipping Company, also known as the Greek Line, operated Lakonia offering cruises from Southampton to the Canary Islands. She left Southampton on her first voyage as Lakonia on 24 April 1963. She proved very popular, and Greek Line planned 27 cruises for 1964. From 9–13 December 1963 she underwent another minor upgrade. A new pneumatic fuel injection system was installed. Cabins were redecorated, and