Doctors have put the 12 boys, aged 11 to 16, and their 25-year-old football coach in quarantine while they are being tested for infectious diseases they may have contracted inside the Tham Luang cave complex.
Teacher Phannee Tiyaprom at Ban Pa Moead School told AFP: "The first thing that comes to mind when I talk about him is his nice manner".
The second group of boys rescued has been given approval to see their parents through glass, but the third group are still undergoing tests, he said.
Thongchai Lertwilairatanapong, a public health inspector, said the boys lost an average of 2 kilograms (4.4 pounds) while they were trapped.
Narongsak Osatanakorn, the Thai official leading rescue operations, said they didn't need Musk's sub.
"To not receive food, we can still survive for many months, but what's necessary is water, which the cave has, and around this time there's a lot in the cave, and they chose clean water to drink", he said. The family members were not allowed to enter the room where they are being treated, in order to avoid infection, Dr Chaiyawej Thanapaisarn said.More news: Miami man with no arms charged with stabbing Chicago tourist
A former Thai navy SEAL told Agence France-Presse that the 12 boys were partially sedated, fitted with a full face mask and passed from diver to diver through the cave complex in stretchers. "I have to praise the coach who took care of the footballers very well", Lertvirairatanapong said.
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Parents of the first four boys freed on Sunday have been able to visit them, but had to wear protective suits and stand two metres away as a precaution. Wetsuits and scuba gear still hung along a walkway at the entrance Wednesday, waiting to be sorted by Thai Navy officials. Relatively mild weather and a massive effort to pump out water created a window of opportunity.
The rescue team being lead by Thai authorities included a number of foreigners, including Australians and Adelaide anaesthetist Dr Richard Harris, a seasoned rescue diver. "This mission was successful because of cooperation from everyone", he said.
"We're just very happy that the boys are out and safe", he said.
Footage released by the SEALs showed parts of the rescue operation that captivated the world.More news: Royal family: Queen and Prince Philip to miss Prince Louis' christening
"By the time the last diver was out the water was already at head level, nearly to the point where he needed an oxygen tank".
Meanwhile divers involved in the rescue operation have broken their silence on how the team managed to extract the boys and their coach from the cave where they had been stuck for more than two weeks.
The most risky part of the journey out of the labyrinthine cave system was the first kilometer, during which they were required to squeeze through a narrow flooded channel.
The water pumps failed, and commander Chaiyananta Peeranarong heard shouts of alarm as the final stage of an unprecedented operation to rescue 12 Thai boys and their coach from a flooded cave nearly tipped into disaster.
"The favourable outcome that has been achieved is nearly beyond our imagination when we first became involved", they said.More news: Serena Williams vs Julia Goerges, Wimbledon 2018 semi-final
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