Obstacle training is great fun, improving the trust and confidence between you and your horse, gaining further precision, improving your horses way of going with gymnastic qualties whether obstacle training from the ground or ridden.
There are so many obstacles available:
The list goes on and the more you expand what you use the more both you and your horse will gain.
Poles are very well used and give true value to you and your horse. There are endless combinations for example; walking over poles, raising poles, using them for jumps, side pass along a pole. It can really open up potential you may not even realise is there.
This is just to give you an insight to further training and fun you can have with your horse on the ground or ridden.