I love to go on long hiking trips. What about you?
Yes ,its referred to as a for a long, vigorous walk, usually on trails (footpaths).
What can hiking do for your body?
Hiking makes one physically fit.also used, as well as rambling, while walking in mountainous plain. 
Is hiking dangerous?
It could be ,if not well practised. Especially walking on a trail is usually a path, track or unpaved lane.