Detailed text transcripts for TV channel - CNN - 20180708:17:22:00
Way in, it was supposed to take about six hours. on the way out, about five hours. part of the thing i wonder about is whether some of that has to do with current. there's been a lot of talk about strong current of the water. and presumably, if going back the current is pushing them and they can kind of drift dive, it would speed them up. but current can be a huge problem when you're dealing with darkness like this, right? >> very much. so you have to believe that the current is running out of the cave, because most caves are downhill. they're formed by water running out of the cave in the fir...