https://www.news.com.au/world/asia/...s/news-story/c954b67c26830e4a31bff9a9808632f1
TETHERED to a frogman, with a static guide rope and stage tanks along the passage, just how the perilous rescue of the 12 trapped Thai schoolboys will take place has been revealed.
The treacherous four-hour journey to safety for each of the 12 boys will take at least two days of continuous individual rescues. To prepare for their journey out of the cave system, each 11 to 16-year-old will first be fitted with a wetsuit, aqua boots, a helmet and a scuba mask. Each boy will then be briefed on what is about to take place to help minimise the risk of panic.
Instead of having their own scuba tanks, each boy will have to rely on an individual navy rescue diver’s air supply given to them in bursts along the way. The divers will use a static rope attached to the cave walls to help guide each boy one-by-one through the cave system of completely flooded chambers and those with air pockets. Oxygen “stage tanks” have been placed every 25 to 50 metres along the linked system of cave chambers so that the boys can get extra oxygen if needed.