I grew up doing Pony Club and its amazing!! Great way to meet friends, and have fun with your horse. Good luck, check out Polocrosse!! It was my fav, my team won states!!
I was part of it for a couple years growing up. Had a lot of fun. When I initially started into it, I was a student and finished my last year teaching.
It's a great program for all levels of experience and riding. You'll have fun!