I love to climb rocks, I tried rock climbing once and it was so very fun, I may try looking for a place for some lesson.
Do you prefer indoor or outdoor rock climbing?
I tired outdoor once, and it was amazing, but I would love to try indoor rock climbing. have you ever tried it before?
Yes, it is so fun. I found an indoor course in AZ called AZR. They also have a ninja training course. 
That sounds very interesting, I've seen a few indoor courses in my city opening up, may try it one day. It is such good exercise too!
What do you like most about rock climbing?
It is very good exercise, it is also a very good plan for a group of friends to get together.
You could also consider joining a rock climbing club to make new friends and share experiences. 
That is very true!
Arizona Mountaineering Club is the oldest existing one in the state apparently. You could check them out!