The rock-climbing went pretty well. GA and I went, along with two other people that GA knows from Facebook. Nice people they were. I climbed fully up one wall twice and sort of half-way up some other walls. They sort of have levels of difficulty and most were too difficult for me, heh. Same for GA. The other guy we were with, Mario, was like a spider up the walls. I think he had the most fun out of all of us.
I did end up pulling a muscle in my right thigh and that pain has just gone away today thankfully. My arms were a bit sore too. Despite that I do recommend indoor rock-climbing as something fun to have a go at.