Scroll down and see the thread, "ziplining at css" someone slightly beat you to the question. CSS and CTI would zipline in the same places. Chukka coves is very popular. We loved it in the spring of 2009! People may post what they did on that thread hopefully!
Do you need to have strong arms to do the ziplining?
Nope! I am a weak 60 year old with asthma and emphysema who is mildly afraid of heights. I had no problem with the zip lining. Actually, you sit in a harness and hang on with your hands only to balance yourself. The Chukka guides adjust the breaks for you and all you have to do is ride.
No you do not need to have strong arms but you do have to hold on with both hands and not really tightly if you don't want to! After your first zip you will know. I was a little scared and held on tightly every time. My boyfrield however did spider man moves, pretended he was flying and basically acted like a small child....lol