| Name | Age | Sex | Injuries | Injured areas |
|---|---|---|---|---|
| Perena, Senor | Not recorded | Not recorded | Not recorded | Not recorded |
| Espinasa Perena, Ramon | Not recorded | Not recorded | Not recorded | Not recorded |
On January 29, a group of six cavers visited the Plaza de Gallos area in the State of Guerrero, in Mexico, to continue a project. They split into two groups of three, one going to start the exploration of Joya de San Miguel. They were rigging a rope at the entrance drop, in the bottom of a very steep dolina, when Senor Perena slipped and fell into the pit. He managed to grab the uncoiled (but not yet rigged) rope as he went over the edge and his son, Ramon Espinasa Perena, grabbed the middle portion, thus offering a 'belay' of sorts. With the aid of this the fall was stopped a short way down the 80 meter initial drop with the elder Perena clinging to a wedged rock. He then tied into the rope and was able to climb out.
The edge of a pit, especially a surface pit, should be considered an exposed site and anyone working right at the edge, or on a slope to the edge, should be belayed or safetied in some way. Senor Perena had been caving for three years and mountaineering for thirty.
Senor Perena slipped and fell into a pit while rigging a rope but was saved from a significant fall by his son.