The first run went fine and the carts were ready for their next shuttle. A mile in, a loud bang signaled the failure of one of the tires. Fortunately, we had a spare. Unfortunately, the wheel that needed replacing was welded locked onto the axle, so changing it out was not an option. The day then turned from waiting for the carts to go back and forth from boat ramp to boat ramp to unloading the remaining canoes, carrying as much gear as you could manage, and stacking the empty canoes onto our Frankenstein cart. Who knew you need to buy three canoe carts to be able to piece together one solidly working one? and it is hardly coincidental that this occured on the lucky, thirteenth day.
If there is a bright side to these events, it would definitely be that if we did not have those carts at all, and not have to constantly be treating various failures they experience, portages would have been many times more difficult in that we would have been hand carrying everything in multiple trips. It is just unfortunate that one of our gear items that we were heavily counting on is so quick to give out on us. Now it is just time to figure out how our final canoe portage will occur with just a single functional cart.