I also hate the gym it is so boring. As I said before I cycle a great deal outside at least twice a week or 30 miles a week. Also being trying gentle yoga but after 6 weeks I have given it up, spend to much time getting up and down after my knee op that I was missing quite a bit. So now after reading all this I am thinking of going to Tai Chai, been before and found it a good workout not only for the body but also for the mind as you have to remember so many moves. Will say that cycling helped me drop a dress size.
Have you ever been to see a Spiritualist
. Good fun & a lovely (qualified) teacher.