Tourism is one of the major industries in the Great Barrier Reef region. Approximately five million people visit the Great Barrier Reef each year. According to the WWF, tourism of the area contributes $5.4 billion a year to the Australian economy, and employs approximately 69,000 people. Ove Hoegh-Guldberg sees the key competitive advantage of the Great Barrier Reef as opposed to other, closer, reef tourism destinations is the region's reputation as being "the most pristine coral reef on the planet". The GBRMPA states that careful management, which includes permits for camping and all commercial marine tourism within the Great Barrier Reef Marine Park, has so far ensured that tourists have a very minimal impact on the reef.