What's the craziest thing you've ever done in your life?

I've traveled from Seoul to Haenam which is located in the most southern area of Korea by bicycle with my friends. We rode almost 80 km every day. On the first day of the journey, I felt really exhausted, and then I was used to it. Our plan was to go to Busan after Haenam and go up along the East sea. One of my friends got injured lightly before we arrived in Haenam, so we changed the plan. I was sad not to achieve our original plan, but we finished the first goal of our whole plan.