"It's like he has been given a new life", she said, adding that she will never let her son go into a cave or near water again.
Seal commander Rear Admiral Arpakorn Yookongkaew said there was no rush to bring the group out of the cave, since they are safe where they are.
Tham Luang cave is one of Thailand's longest, winding 10 kilometres (six miles) and is also one of the toughest to navigate - especially in the wet months.
Water continues to be pumped out of the cave complex and officials have said they are confident they have been able to stop more water getting into the chamber the boys are in.
Authorities still hope they can manage any fresh deluge, with high-powered pumps draining 128 million litres (34 million gallons) of water so far from the cave in a round-the-clock effort.
Rescuers took advantage of the relatively dry weather this week by pumping out as much water as possible from the cave.
Anmar Mirza, coordinator for the US-based National Cave Rescue Commission, told Yahoo News Singapore via email that the big decision is whether to evacuate the group soon or supply them with food and water while waiting for the floodwaters to subside. At some points, passages are so narrow that a person can not fit through while wearing an oxygen tank.
Around the camp which has sprung up near the cave entrance, Thai military divers have set up an encampment with diving gear and equipment, while people from the local community hand out food to rescuers, other volunteers and the small army of press on site.
He called on the two British divers Rick Stanton and John Volanthen, who were the first to reach the trapped boys alive on Monday.
The boys and their coach got trapped in a flash flood while they were participating in an initiation ritual on June 23 where they each carve their name on the cave wall. Though they are visibly skinny and weak, the boys and their coach appear to be in good spirits, smiling for the camera as the SEALs crack jokes. The boys - aged from 11 to 16 - would be accompanied by professional divers.
A Thai official on Thursday said he had asked for 13 diving kits to be prepared while navy SEAL divers were assessing if the youth football team were fit enough to be extracted from the cave early.
The group consists of Dr Pak Loharnshoon, who had graduated from the navy Seals training course, a nurse from the Royal Thai Navy's underwater and hyperbaric medi-cine unit, and seven members of the Thai navy Seals. "Creating an environment that can make them safely get away, that's feasible".
"I have to make a decision about taking them out when the time comes", said Narongsak Osottanakorn-the governor of northern Chiang Rai province, where the caves are-at a news conference Thursday morning.
The boys, who can not swim, are being trained in how to dive using scuba equipment.
The boys would need to wear full-face diving masks to enter the narrow tunnels in moving water, though many experts say this would be a risky option for novice divers.
The concern is that the rainy season has only just begun, so water levels in the Tham Luang cave will nearly certainly continue to rise. "That's up to the team inside to decide", Kobchai told reporters on Thursday.
"All 13 do not have to come out at the same time".
But the work has continued at an unrelenting pace - as everyone is aware that, once the monsoon rains start, rescue efforts will be much more hard.
Other boys, meanwhile, are seen sleeping under foil warming blankets.
Thai authorities are working with Navy SEALs to run a fibre-optic internet line into the flooded cave.
Thai officials launched a massive search and rescue operation in Khun Nam Nang Non Forest Park involving more than 1,000 people, including specialists drafted from various nations such as Australia, China, Japan, the United Kingdom and the United States.
According to experts, divers required three hours to reach the boys from the mouth of the cave, Reuters reported.
An additional senior AFP officer will also be deployed to support planning and coordination efforts.
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