i feel alive when climbing rocks. Rock climbing is an activity in which participants climb up, down or across natural rock formations
Oh wow. I've always wanted to try rock climbing. Tell me more about it! 
Simple really, the goal is to reach the apex of a formation while enjoying the outdoors and nature.
What kind of equipment is needed to get started rock climbing? Is there a special harness?
I guess the more experienced you get the more technical it gets depending on the formation thats being submitted. As a novice, all you'd is a good pair of climbing shoes and a walking stick.
Are there any places that are especially good or famous for rock climbing? 
Definitely, theres the El Capitan in Yosemite National Park, Silver Mountain in Baraga, Gibraltar Rock in Santa Barbara and a lot more all over the world.
I've heard of El Capitan in Yosemite National Park. Can you tell me more about those those places?