A trip report of a canyoneering class taken near Zion Park. I like this part:
“..my mates check out my set-up, and I backed off the sheer drop into the abyss. All I could see was dark, foreboding rock faces dropping straight down into an inky, black pool of fetid water, 100 feet below.”
Nothing like dropping into an inky pool of cold, fetid water to wake you up.