Peter Dennis, from the British Cave Rescue Council, told the BBC that the expert divers involved in the rescue operation will be doing the majority of the work for the boys as they come out of the cave system.
He said that the boys would remain largely passive as they were guided through the cave system.
"There's been a lot of comment on them needing to learn to dive before they could come out. Well, that isn't the case. They're just essentially being pulled through the water," he said.
"They have their full face mask and their air supply so they can breathe as normal. They have an air supply around their face over this much larger-screened mask and that's been the key really to getting the four out successfully yesterday."