Kathryn, I know it! Makes me want to get out there so badly! I love how it shows the extension in the horse between fences and how the rider brings down her horse and rocks her back to ride those difficult fences.
I have no idea what level that is. I am going to assume along the lines of Advanced to Intermediate.
The camera is small and set on an elastic band *not a rubber band* and then secured to the riders helmet.
This will give you an idea: