Devon of much of Devon's countryside and coastline as the Dartmoor and Exmoor national parks, and the Jurassic Coast and Cornwall and West Devon Mining Landscape World Heritage Sites. In 2004 the county's tourist revenue was £1.2 billion. More successful visitor attractions are particularly concentrated on food and drink, the South West Coast Path and watersports, including sea-view restaurants in North-West Devon (such as one example belonging to Damien Hurst); surfing there, indoor and outdoor folk music festivals across the county and sailing in the hill-surrounded inlet (ria) at Salcombe. Incomes vary significantly and the average is bolstered by a high
UNESCO Convention on the Protection of the Underwater Cultural Heritage sites have now disappeared without any trace. Due to the sheer mass of the world's oceans and the inability to monitor all activity that takes place therein, pirates and underwater thieves continue to pose a significant threat to the preservation of cultural heritage and cultural property. In 2006, the UNESCO convention was ratified by an additional state, Portugal, needing international protection for the looting of its underwater cultural heritage sites. At least six international treasure hunting organizations had established themselves off the coasts of Portugal to reap the benefits of the nation's coastline after new legislation had allowed for the