I love hiking, it means to take a vigorous walk in the country side. 
I do too. I live near lots of mountains, so it's perfect for me to do too.
In Australia they call hiking bushwacking!
I have heard word and did not know that's what it meant. makes sense.
Hiking is popular world wide and is touted for its health benifits. 
It gets hard to breathe when you get up really high though
If you hike in the hills of England they call it hillwalking!
I like to walk up steps for exercise too.