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After English divers helped Thai military officers find the 12 boys and the football coach who were trapped since the 23rd day in the Tham Luang cave in the north of the country, a situation still more complicated.
There are three main options, according to the experts, but none of them is simple or quick to do: pump the water from the inside of the caves and wait for it. They go out on foot, roam the area to find
For the Brazilian diver Rodrigo Severo, member of the Speleorresgate Commission of the Brazilian Speleological Society (SBE) and the Espeleo Brasília Group (EGB), a group of caving that has existed for more than 10 years and is a reference in the rescue of caves in Brazil, all possible paths for boys as well as for groups of volunteers and soldiers who try to remove them from there.
Pumping and good weather
In terms of safety, pumping cavern water, something that has already been done since the beginning of the research operations, would be the least solution risky, according to Severo.
"The pumping will always help, but the problem is the season.It is the monsoon season in Thailand, but it is the monsoon season, the amount of rainfall Grows a lot and the caves, virtually any cave in the world is like a sewer, that's where the water goes down in the area.And we do not know what can happen to the boys' & nbsp; They have to wait for months inside and they lose the dry zone where they are, if the air volume decreases, all of this damages, "said the diver.
Searching for New Entries
Another option that would bring less risk to children and rescuers, but at the same time depends entirely on luck would be to find new entries. The problem is that the cave where they are is at least 800 meters deep.
"Speleologists know that you can always find a new entrance, a new way, I know that several groups are crossing the area and are looking for, but like a needle in the haystack, it's complicated and unpredictable to whether it will work or not. "
Diving is the last option
A series of factors makes possible the training of boys According to Rodrigo Severo, using the diving equipment is the last choice. Diving into caves is risky, especially in water courses such as the stream inside caves, where visibility is still low because of sediments dragged by rain
"J & # 39; I learned that many boys can not swim.The cave is one of the most difficult, as complicated as diving in the depths or ice.For those who have no experience , up to 30 meters can be considered as a long stretch.There are many narrow tunnels and low visibility, many experienced people would have problems with an intermediate option, where pumping would bring back the level of energy. water low enough for the dives to be shorter, could help. "
" Any decrease would help, but that would depend on the non-return of the rains, which does not seem to be the case ", deplores Severo
Option rejected
The fourth alternative, according to the Brazilian, seems to have been thrown: drill the mountain above the cave until you reach where the boys are. As they are in a small area, opening the roof above them could cause a tragedy.
"First, it is very difficult to find a way to a small area like that. if they dig a hole above them, they can crush the entire roof and they will have no place to protect themselves, "he warns.
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