Earlier this August, I had the pleasure of introducing an Aussie canyoneer (Paul Griffiths, who's both very experienced and excellent company) to a few Zion canyons. Following a long day doing Full Imlay, I decided to start with a relaxing Keyhole/Pine Creek combo. All was well until, half way through Pine Creek, we began to hear a man calling out. As we progressed, it became increasingly (and alarmingly) clear that these were cries for help. We arrived at around 6pm. Turned out, a couple was stuck on the final 100 ft free hanging rappel. Still at the top was a man wearing only a single layer of cotton clothing and a harness with an ATC on one biner. No other technical equipment. His fiancee, similarly outfitted, had been hanging on rappel for over an hour. The large rope (12mm? I didn't recognize it) that they'd brought had jammed in her ATC. She was whimpering in pain, freezing cold. Paul and I lowered her a biner at the end of my rope. With great effort, she managed to clip it into her belay loop. It only took few moments to lower her. I didn't trust boyfriend to descend my 8mm single strand on his ATC, so I lowered him down also. Luckily, Paul had emergency medical training (and unparalleled bedside manner). Paul wisely assumed that her injuries were serious, and so I went out to initiate a rescue with my Garmin InReach. Before my SOS went out, an NPS ranger spotted me from a window on the SR9 tunnel (I learned later that a hiker had heard the man's cries for help, and alerted NPS.). After a few minutes of shouting at each other, he confirmed that a rescue crew was on the way. Sometime after 11pm, the woman was able to walk out of the shortcut exit to SR9. My knowledge of the rescue ends there. I was thankful that Paul and I had both dry-bagged extra food and clothing. The unfortunate pair had stored what little provisions they brought in Zip Lok bags. All was wet and ruined. Also, I can't thank Paul enough for his ceaseless cheer and keen judgement. This was my first rescue. I'm relieved that it had a happy ending. I'm so thankful to everyone who prepared me to enjoy this sport safely and responsibly.