Head First?
There are a lot of winter sports where the idea is to launch yourself down a mountain or ice ramp at high speed and get to the bottom first (and alive). When it comes to sleds you have several options. The team variety is bobsledding where 4 people cram into a bullet shaped sled and head down a icy course.
In the single sled sports you have either luge, where you lie on your back or skeleton where you go down head first. Which one are you willing to try?