The deal I made with the nephews prior to the ride was that I would try most anything but they had to agree going in...... "don't ride anything that you don't want to ride twice......and one of those times with me on the back". While it never came to that.......it got damn close.
The river crossing? I felt I had that. The rocks were saucer to small dinner plate sized and while there was some algae, nothing like the James River in Texas (our most notorious crossing which I have successfully done ;)) and not nearly as deep as the Shaw's Bend Colorado Crossing can be.
But after negotiating the first section and about 15% of the big crossing I stopped and The Big Ugly's tires started to sink into the rocks. nephew1 waded out and explained that he would take it from there as he didn't want our trip to end that day with a swamped bike. I reluctantly agreed.
Probably a good call in Mexico....but back home it would have been on...like Donkey Kong. lol