I think Pups_mum has really covered everything but I just wanted to add that dd went to her first summer residential when she was going into year 6 and enjoyed every minute if it. It was beneficial to her in so many ways. Aside from the wonderful teaching she received it gave her so much confidence & independence. I am pretty sure Opes takes from 9 & if she's going to be 10 before the summer it might be worth giving Elmhurst a call as they accepted my dd at 10, though she was only a few months off 11 at the summer school. It was a nice one to start with because it's shorter at only 3 days though my dd did come away wishing it was longer which seemed to be the general consensus.