The islands came to worldwide prominence when Ko Phi Phi Leh was used as a location for the 2000 British-American film The Beach. This attracted criticism, with claims that the film company had damaged the island's environment, since the producers bulldozed beach areas and planted palm trees to make it look like the book,[1] an accusation the film's makers contest. An increase in tourism was attributed to the film's release. Phi Phi Leh also houses the "Viking Cave", from which there is a thriving bird's nest soup industry.