Longest underground river
- Who
- Yucatan Peninsula
- What
- 153 kilometre(s)
- Where
- Mexico
- When
- 02 March 2007
In March 2007 cave divers Stephen Bogaerts (UK) and Robbie Schmittner (Germany) announced that they had discovered a river beneath the Yucatan Peninsula, Mexico, which is 153 km long. The river, which has many twists and turns, spans around 10 km of land.