Some how I don’t think that’s possible just now, the ground’s hot enough to melt the soles of your shoes I believe. Local farmers have cut the grass along boundary fences and cut trenches too in order to create a fire break and protect their property.
As for the “fledgling cave divers” in Thailand, you don’t really need to know how to swim to scuba dive. Health, physical strength and durability are far more important.
But the biggest hurdle for those who can’t swim is getting over any fear of water they might have, having their face submerged, and then getting accustomed to breathing under water through a full face mask (never used one myself). But they’re kids; they are a football team, they’ll probably take to it like a duck to water.
They’re clearly adventurous or they wouldn’t be in that cave. They’re a team so they’re used to tag teaming and taking instruction so they’ll adapt those skills. There’s absolutely nothing to distract their attention down their so they will soak up instructions like a sponge. The problem might be in holding them back, not letting them get over confident and carried away 'cos this’ll be the adventure of a life time for them.
They’ll have lighting - torch/glow sticks even attached to them; they may even be tethered (I don’t know if that’s a safe option or not in such conditions). So even though it would be pitch black down there, there will be some lighting to lead the way and head toward if any of them get into difficulty. I’ve more confidence in the children’s capabilities than the conditions they have to traverse through But those Seals will stick to them like glue…octopus
Never done cave diving myself; that’s a whole other ball game. I’ve done open water both wet and dry suit and night diving in open water, flooded quarries, docks and the likes. Oh, and just a little bit of sky diving…naturally…and then I had kids! But I drew the line at cave diving…not that I’m claustrophobic or anything but…