So I went on the hike by myself, and Richard took the kids to another (free) hike and gave them a fantastic little geology lesson.
The canyon hike was really awesome. It wasn't really a "hike", and it was really crowded, which made it hard to get good pictures, but I would totally do it again.
When I got back out from the canyon Richard and the kids weren't back yet so I just sat at a picnic table and waited for them. When they joined me we ate some snacks, let the kids play at a little park, and then made our way back to the Eurocamp for lunch.
In any case, it was a real challenge, and there were these obnoxious kids who would hang around and shake the bottom rope to make it even harder to get across. But we all had some really good laughs on it, and some really good falls. too. (Except Richard, who was the master monkey, and could go completely parallel without losing his grip.)
In the late afternoon there was a football tournament organized by the Eurocamp, that Cameron really wanted to play in. So he changed his clothes and did that while I stayed with the other kids at the lake for awhile. Then we all went to watch the games for a bit, and eventually we made our way, completely exhausted, back to the trailer, for dinner.
That night we took showers, played cards and went to bed, totally spent.