Guardian Update:
"Ben Raymenants, who was 400m behind the British divers when the boys were found, suggests they are too weak to attempt a dive rescue for the moment.
Speaking to Sky News he said:
“The condition of the boys is quite stable. They are mentally quite fit, better than anticipated. They are very weak though. They did not have any solid food for 10 days, just drinking water dripping from the walls. There are now two navy Seal doctors giving them food slowly, enabling them to get their powers back. And then see if they can evacuate the boys.
“First the boys need to get their strength again, because right now they can’t do anything at all. They have muscle atrophy, they can barely stand up. So they are feeding them slowly to get back their strength.”
Raymenants described reaching the boys as “very taxing”.
He said:
It is an extreme cave system. It is very long, one of the longest in
Thailand, and its a complex system of tunnels.
The Thai navy is not that specialised in cave diving, so we were taking turns with the British team in laying fixed ropes, 2.5km into that tunnel making a way to this room where we expected the kids would be.
Raymenants said the boys had made their way though the tunnel as part of a local initiation rite.
They had no food. They left their backpacks and their shoes before wading in there, trying to go the end of the tunnel like an initiation for local young boys to go to the end of the tunnel and write your name on the wall and then make it back.
A flash flood because of sudden heavy rain locked them in, with no shoes and no food. They had just one flash light which obviously ran out.
There was a 30-year-old map made by French speleologists, with some corrections from British speleologists. That was the only basis we had. It was pure speculation that they could be there in one of these two rooms. One is called Pattaya beach, and the other is another dry air pocket. It was all speculation and pure luck that they were there.
Raymenats outlined three options for getting the boys out:
One is to teach them to scuba dive. It is a least a 2.5km swim through narrow restrictions of a complex cave system. This is not the easiest solution.
They are also trying to pump the cave empty with giant pumps which was working to some extent. But they are expecting heavy rains in the next two days.
The last option is sitting it out and waiting. Two medical officers in the Thai navy have volunteered to have themselves locked in with enough food and supplies to sit there for three or four months until the water drops again.
He cautioned against the dive option:
This is one of the more extreme cave dives that I have done. It is very far, and very complex. There is current. The visibility can be zero at times. So getting boys through there one by one, and the risk that they will panic is there. They can’t even swim. This has been done before with pulling people out of wrecks alive. So it is not impossible, but the issue is the restrictions - just one person can fit through. So guiding a boy through in front of you could be quite challenging, especially if the rain picks up and there’s a strong flow and the visibility reduces to zero. When it starts raining the flow is so hard you can barely swim against it.
It took us four hours just to swim to the point where we had to tie off the lines. It is really long swim. So it is really hard to give an opinion on what is the best solution.
I think the weather is going to be the deciding factor."
Thailand cave rescue: medics reach boys – live updates