Hidden Worlds 3D: Caves of the Dead

The entrance to the underworld begins at a dirty waterhole in the middle of the Mexican jungle overgrown and barely recognisable

In the days of the Mayas, cenotes – deep, natural pits on the Yucatan peninsula - provided the only means of obtaining drinking water. But in the mythology of this advanced civilisation, these waterholes and caves were also the entrance to Xibalba – the underworld