It turned out that we had forgotten the one dry bag that had all the tents in it back in the trailer.  Oops.

After a lot of discussion between Calvin, (the acting SPL), and Connor and Mac, (the two PL's), it was decided that we would reload the canoes and push on downriver to a campsite with road access.  There one of the adults would hitchhike back to the trailer and get the tents.