Bucket list

I have an English homework to talk about life experiences.

I've never climbed a mountain but I climbed a hill in 2013. (I'm not sure about the difference between mountain and hill) (a mountain is like mount everest. a hill is just sloped landed upwards, like that you could ride your bike down without pedaling)

I've never won an Olympic gold medal, but I have won a trophy from a running in my city because I was the faster one in my category. (run)

I haven't been on The Antarctic and I don't know if I wish to go someday. It seems really cold for me. (to)

I've never met any famous footballer. (footballers)

I haven't run a marathon but I have run the Saint Silvester Road Race. The course is 15 km (9.3 mi) long. The race is hard because it always happens in Brazilian summer.  (during the brazilian summer)

I have never played the piano.

What about you? What have you done? =)