|Classification:||Karst cave River Cave|
|Dimension:||L=16,910 m, VR=250 m.|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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|1974||first explored by Basco, Garrison, and Quires, 2,500 m of the cave explored.|
|1977||explored by Basco, Miller, Herceg, extended to 5,000 m./td>|
|1983||Basco, Troester and McMaster total 7,060 m.|
|1983||exploration of the cueva Juan Nieves, connected to Aguas Frias.|
|1984||Cueva del Rio Encantado and Cueva Escalera, total length 9,100 m.|
|1984||Cueva Juan Nieves explored to 3500 m.|
|1985||Vidrios, 9332 m.|
|1985||Cueva Juan Nieves explored to 5357 m.|
|FEB-1986||connection Juan Nieves-Encantado, total length 16910 m.|
Cueva Juan Nieves is one of currently five entrance to the sistema del Rio Encantado. They are called Rio Encantado (175 m asl), Escalera (200 m asl), Vidrios (200 m asl), Cueva Juan Nieves or Tito, and Manantial de las Aguas Frias. The caves were explored during the 1980 by different caving groups, and finally one after the other connect to the system. With the connection of Juan Nieves to Encantado, the cave system reached a total length of 16,910 m, which makes it currently the longest cave of the island.
The cave has numerous sumps and vertical sections, and it is definitely not a cave for tourist visits. Nevertheless, it seems the cave is guided on cave trekking tours, at least a more harmles section.