We just ended up going on a different hike, which was a little bit shorter, and had far fewer rocks to slip off of. Within two hours, we made it up and back.
Fungus was kind of...
trippy.
Back down in the parking area, one of the fathers had set up enough of a shelter to keep folks dry and had some stew going (one of the fellows who runs a restaurant had donated a pot to the cause). While the grub was heating up, a few of the boys went down to a stream and started playing on the rocks. Boy genes. That's what they do when you them loose in their element, outdoors.
The rain had more or less stopped anyway.