South Africa has an extensive coastline in the southern section of Agulhas and Somali Current Large Marine Ecosystem (ASCLME) region, with the coastal provinces of KwaZulu Natal (KZN), Eastern Cape and Western Cape forming the seaboard. The South African Heritage Resources Agency is charged with the protection and management of South African heritage. Places of special national significance must be identified, while structures older than 60 years as well as archaeological, palaeontological and meteorite impact sites, and public monuments and memorials may not be destroyed, altered or disturbed without a permit. Over 2,700 vessels are known to have been lost along the South African coast since 1500, while there are a number of archaeological sites relating to early African agricultural groups settling in the subcontinent as well as colonial conflicts.