Just the Facts

Water Temperature:

Total number of known cave systems: 150+

Ten Longest Underwater Cave Systems within the Riviera Maya area.

1. Sistema Ox Bel Ha 474,898 feet+ (144,749 meters)**
   
   
2. Sistema Sac Aktun 258,139 feet+ (78,681 meters)**
   
   
3. Sistema NoHoch Nah Chich 213,510 feet (65,078 meters)
   
   
4. Sistema Dos Ojos (Two Eyes) 186,363 feet (56,803 meters)
   
   
5. Sistema Naranjal 70,619 feet+ (21,525meters)**
   
   
6. Sistema PonDeRosa 49,275 feet (14,932 meters)
   
   
7. Sistema Yaxchen East 42,947 feet (13,090 meters)
   
   
8. Sistema Muul Three 31,593 feet+ (9629 meters)**
   
   
9. Sistema Chac Mool 30,160 feet. (9193 meters)

**reported estimated distance

Ten Deepest Depths In CAVES or CENOTES:

1. Sistema Dos Ojos, Cenote The Pit, B.M.B Tunnel-391 feet/119 meters,
   Team: Paul Heinerth
   
   
2. Sistema Nahoch Nah Chich, The Blue Abyss- 235 feet/72 meters.
   Team: Steve Gerrard & Mike Madden - February, 1993.
   
   
   
3. Sistema Tortuga, The Black Hills Forest Tunnel- 130 feet/39 meters.
   Team: Don Redinger, Cliff Keck, Ivan & Mary Capelli - August, 1994
   
   
4. Cenote Agelita
   
   
5. Cenote Siete Bocas or known as DEEP BLUE-
   171 feet/52 meters,
   Confirmed by Ken Bosko of Traverse City, Michigan
   
   
6. Cenote Tres Bocas
   
   
7. Sistema Naranjal, The Charcoal Vault- 125 feet/37.9 meters
   Team: Jim Coke & unknown
   
   
8. xx
   
   
9. xx
   
   

Underwater Caves Connected To The Caribbean Sea:

1. Sistema Nahoch Nah Chich- Cenote Tankah to the ocean,
   Connection by Eric Noftall and Chuck Stevens uptream.
   
   
2. Sistema Dos Piez-
   Connection by Fred Devos.
   
   
   
3. Sistema El Punta-
   Connection by Fred Devos.
   
   
4. Sistema Ox Bel Ha- Three different vents into the ocean,
   Connections by Bernard Birnbach, Christophe La Malliott and Daniel Riordan.