At Haew Suwat Waterfall - the one Leonardo DiCaprio jumps from in The Beach - I get chatting to an Austrian couple. They are not beach people, they say, so they took a chance on Khao Yai ...

The waterfall, known as Haew Narok (Hell's Fall), has a history of similar incidents. A herd of eight elephants died after falling in 1992, in a case that brought national attention. Thailand's ...