Season 2, Episode 4 Diving the Mexican Underground
First Aired: October 24, 2009
The underground rivers of Mexico's Yucatan peninsula; venomous fish; the Greenland shark.
Cast & Details See all »
- Premiered: May 17, 2008
- Rating: TV-G
- Premise: Underwater photography is featured in reports on marine life, nautical exploration and deep-sea research. (more)