Help me remember a movie plz!

[Punkeater]

Hey!

I'm looking for an old movie but I can't remember the title. I need help

All I remember is that it was a movie about extreme sports made in the late 80's or at the beginning of the 90's.

They had to do a big challenge to save something ( I don't remember what they had to save)

One of their challenge was to do some extreme rafting. One of the other challenge, they had to skate into a bobsleigh track. I can remember that one of the actor skated a really funny way. It was kind of an extreme sports movie but funny too.

Anyone can help me remember plz? I had this movie in my head for the last week... I couldn't find anything about it ;(