Hello! Any interest in Hiking my friend?
Yes buddy, Hiking is a vigorous walk done on a path, walking is used for shorter, particularly urban walks
South Downs Way in the UK is approximately 100 miles just to complete the trail! That's one long walk! 
The word rambling is used for hiking in the UK
The South West Coast Path is Britain's longest national trail (630 miles)
Awesome, The word bushwalking is another one for it  and it is  endemic to Australia, having been adopted by the Sydney Bush Walkers club in 1927
Wow, you certainly know more about hiking then i thought! it is nice to test your knowledge.
Thanks buddy finally if you find yourself In New Zealand a long, vigorous walk or hike is called tramping