Dive equipment. But they would each be guided by two professional divers. Even the elite divers, the navy divers, found it difficult to move through the muddy waters and the passageways. In fact, some of the channels in those caverns are so narrow that only one person at a time can fit through. That means that for portions of the trip out, the boys would be on their own. Watch this. Is almost zero visibility. There is currents to battle against. It is really quite a strenuous environment to be in. The question then becomes how these boys handle stress because experts say that if any of them get into the small passageways and they panic, that could be lifethreatening. And now if they decide to stay inside the cave and sit tight, stay there for the rainy season, that means not getting out until october. They would certainly have supplies and a light and communication, but more rain might mean moving to higher ground, and right now, they are about to end a half miles an end a half mile do