With more rain coming, Thai rescuers are racing against time to pump out water from a flooded cave before they can extract 12 boys and their soccer coach with minimum risk, officials said Thursday.
A firefighter who has been working on draining the water said that levels in parts of a passage leading to a chamber where the boys and the coach were found on Monday after missing for nine days was still flooded all the way to the ceiling, making diving the only way out.
"What we worry most is the weather," Chiang Rai provincial Gov. Narongsak Osatanakorn told reporters. "We can't risk having the flood back into the cave."
He said he asked Thai navy SEALs in charge of extraction plans to estimate what sort of a risk would be involved to take them out and "what kind of readiness we can have today and decide if we can take that chance." He said not all 13 may be extracted at the same time depending on their condition. He said earlier that the boys have been practising wearing diving masks and breathing, but he doesn't believe they have attempted any practice dives.
"This morning, I have asked for 13 sets of [diving] equipment to be prepared and checked the equipment lists and place them inside [the cave] in case we have to bring them out in this condition with less than 100 per cent readiness," he said.
Chiang Rai Gov. Narongsak Osot-tanakorn, who heads the rescue operation, talks to the press at the Khun Nam Nang Non Forest Park on Tuesday. (Linh Pham/Getty Images)
Officials have said they prefer to get the boys out as soon as possible because heavy rain is expected to start by Saturday, which almost surely will raise water levels again in the cave, making passage in some areas even more difficult if not impossible.
They are hoping that an upgraded draining effort can lower the water level in an area where it is still at the ceiling or just about. The idea is to get some headroom so the boys would not be reliant on scuba apparatus for a long stretch and could keep their heads above water.
7 Thai navy SEALS
The boys, aged 11 to 16, and their 25-year-old coach disappeared after they went exploring in the Tham Luang Nang Non cave in the northern province after a soccer game on June 23.
Authorities said the boys, who appeared skinny but in good health in several videos released by the Thai navy, were being looked after by seven members of the Thai SEALs, including medics, who were staying with them inside the cave. They were mostly in stable condition and have received high-protein drinks.
In all of the videos, the boys appeared in good spirits. In the most recent video, a navy SEAL is shown treating minor cuts on the feet and legs of the boys with antibiotic ointment. Several of the boys are seen smiling as they interact with the navy SEAL, who cracks jokes.
In the video, you can see some of the boys saying their names and smiling while others receive some first aid 0:50
Seeing the boys has boosted the mood of their family members, and officials are working to install an internet cable to the cave so that parents can talk to their children.
Kian Kamluang, whose 16-year-old son, Pornchai, is in the cave, said she had thought there was a 50 per cent chance that her son would be found.
"It's like he has been given a new life," she said, adding that she'll never let her son go into a cave or near water again.
Teaching minimal dive skills
Authorities said they were still scouring the mountainside for other ways into the cave and finding faster ways to pump water from the cave.
Some cave rescue experts have said it could be safest to simply supply the boys where they are for now, and wait for the water to go down. That could take months, however, given that Thailand's rainy season typically lasts through October.
Experienced divers are wary of taking out the boys through the dark and dangerous waters still in the cave, especially since they are untrained.
"We are talking kilometres of transport under the water with zero visibility," said Claus Rasmusen, a certified cave diving instructor based in Thailand who has been helping Thai SEAL team with logistics. "It's difficult."
He said it was awkward, but possible, to teach them minimal skills.
"Nobody will teach anyone a full cave course, but trying to get them comfortable with masks, with the breathing, [is] completely different," he said. "Creating an environment that can make them safely get away, that's feasible."
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