This first one doesn't seem like much of an obstacle, but it involves putting something across the llama's back (usually it's something that dangles and touches their legs, but in this case it was just a towel), and a change of pace. Normally you go through these courses at a fast walk, but you have to run for a change of pace.
Getting llamas used to things like Sprinklers is something that we normally do in a "Public Relations" course -- which is like an obstacle course, but usually involves people, brightly coloured objects, possibly loud noises and unique things that one might only encounter at fairs, school tours, etc.
This bridge tips once you put weight on the other side, and the metal arch rattles when the bridge moves. Also, while hard to see, there are streamers tied to the arch that will brush against the llama as she passes.
Most of the time, you either go over or under a bar, but in this case, we did both at the same time!