Mexico
Sistema Vaca Ha - "Cow Water"
Of all the caves that I dove in Mexico so far, this was by far the most surprising. Starting as a small pool of water in the middle of the jungle, through the restriction and 25 ft of smallish passageway, this caves then explodes into series of massive lavishly decorated open spaces that continue uninterrupted for about 600 ft through the freshwater zone. The cave then goes below the halocline and changes character completely with Florida-like tunnels in the salt water zone that continue for at least another 600 ft (this is as far as I made it). Size, variety, colors all combined to make Vaca Ha my favorite destination in Mexico.
