I am cold and alone inside the cave. Sitting there at 6m (20ft) I'm slowly loosing all feeling. I am so cold that it hurts. I am desperately craving comfort. To stay put is a mental struggle. It is ...

Morgan O’Hanlon: As you’re driving through West Texas and through Balmorhea, this kind of big open desert, you get to the Phantom Springs Cave and it’s this tiny little narrow crevice.

For most people, the idea of scuba diving in miles of pitch-black tunnels with no wiggle room is the stuff of literal nightmares. But as veteran British cave diver Rick Stanton told The Post, “I do it ...