I love hiking! It is a very popular activity in Canada and America!
Yes, I'm an adventure athlete. I love it as well. In fact last year I spent 5 months hiking the Appalachian trail.
Same! In other parts of the world like the United Kingdom and Ireland it is just called walking
or hill walking. I'm scottish and everyone goes Hill Walking.
I have also heard that in Australia it is called bushwalking.
I'd love to go hiking in the outback. 
Same in New Zealand they call it tramping!
Do you think that is where Alexander Supertramp got his name?
It could be! I think I might go on a day hike this weekend to blow off some steam
Try trail running and really work up a sweat.