For my eleventh birthday party, I invited over 12 of my friends, ranging in ages from 5(my best  friends little brother, I would suggest a minimum age of 9 or ten, the older the better, or  stronger.) to 12, not including Adults. We went to Indoor Summits, a rock climbing place in the  suburbs, and we went rock climbing. Because all the quests didn't know each other, we made  name tags, big ones on our backs, little ones on the front of our shirts. Once we were there,  my mom had rented the party room, and we were given instructions and then we were climbing for two hours. Afterwards we came back to my house and played games, ate pizza, had cake, and opened presents. I gave everyone goddybags that were sorta rock themed. They  had a rock in each of them that was a piece of slate, a (I can't remember what it is called, but it  is what hooks your harness to the rope) keychain, and a chocolate bar. Because I enjoy printmaking, I gave each of them a blank card with a print on the outside, either of a poodle- lamb or flowers. I really enjoyed my 11th birthday party, and hope my 12th birthday party can top it off.