If you get the chance to go and visit the main donkey sanctuary or an open day at a smaller one I would recommend it. They hold a lot of events to raise money and it is interesting for all age ranges.
Here is a link to their website if you would like to go on it.
Sven and his mother (photo from the donkey sanctuary website).
Today I have had a riding lesson on Trooper. It was my first riding lesson in a few months but he was really good. We did shoulder in, in both walk and trot. I had to do sitting trot which was very tiring so I kept having a rest and rising! I also had to do walk to "almost halt" and keep him stepping and not quite halting. This helped to get his hind legs underneath him and get him off the forehand and helped a lot. I also had to do some walk to canter and canter to walk on quite a small circle which he found hard and kept falling out. I had to try to imagine I was riding a square to keep hold of his shoulder more. I need to practice cantering on small circles and I am going to do more of the walk to almost halt as that improved him a lot after doing it.