We often go with her, but today she decided to go on her own - I guess she didn't want Dad to be left all alone on his birthday.
The trials are in 3 parts - the first one is a bit like an obedience test that I could take, except it has a fancy name - dressage. The second stage is where the horses run around the park jumping great big fences like these...
That looks a bit like agility to me!