Wow, thank you SO much for all these helpful suggestions!! There are so many of them I could try, I am so grateful.
Luckily today she was given a run along the beach by someone and a hike up the cliff path, which is quite steep, and she loved it all. She came home so happy. I was amazed, as I thought her knee would have caused her discomfort, but they say she really enjoyed it. It is bedtime for us now (its nearly 11.00 pm over here) but she is ready for a ball game!!!? My husband says I will have to stop all the vitamins I give her, LOL!!
Thanks again for all the help. God bless.