Tourism brings in much-needed foreign exchange. Vanuatu is widely recognised as one of the premier vacation destinations for scuba divers wishing to explore coral reefs of the South Pacific region. A further significant attraction to scuba divers is the wreck of the US ocean liner and converted troop carrier ''SS President Coolidge'' on Espiritu Santo island. Sunk during World War II, it is one of the largest shipwrecks in the world that is accessible for recreational diving. Tourism increased 17% from 2007 to 2008 to reach 196,134 arrivals, according to one estimate. The 2008 total is a sharp increase from 2000, in which there were only 57,000 visitors (of these, 37,000 were from Australia, 8,000 from New Zealand, 6,000 from New Caledonia, 3,000 from Europe, 1,000 from North America, 1,000 from Japan. Tourism has been promoted, in part, by Vanuatu being the site of several reality-TV shows. The ninth season of the reality TV series ''Survivor'' was filmed on Vanuatu, entitled ''Survivor: Vanuatu—Islands of Fire''. Two years later, Australia's ''Celebrity Survivor'' was filmed at the same location used by the US version. In mid-2002, the government stepped up efforts to boost tourism.