Season - Episode

1 Season 1 Mar 05, 2006
0 Season 0 Mar 05, 2006

Overview

The freshwater pools that dot Mexico's Yucatan peninsula were believed by the Mayans to be portals to the underworld. For the first time ever, the BBC Natural History Unit explores this incredible, labyrinthine system of underground rivers.

Year
Studio
Director
Popularity 6.7
Language English