I love hiking usually on trails in the countryside.
I do like being outdoors but what does hiking entail? 
It is the act of a long, vigorous walk, usually in challenging areas! Thats what makes it so fun!
Sounds like a dram except for the challenging part. Do you need special equipment? 
Well hiking in mountainous areas is called hillwalking and requires some sophisticated equipment.
Do tell, what sophisticated equipment? Do you need to be experienced to use them?
the UK, along with rambling (a slightly old-fashioned term), hillwalking, and fell walking (a term mostly used for hillwalking in northern England). The term bushwalking is endemic to Australia, having been adopted by the Sydney Bush Walkers club in 1927. In New Zealand a long, vigorous walk or hike is called tramping. It is a popular activity with numerous worldwide, and studies suggest that all forms of walking have health benefits.
Related terms.
In the United States, Canada, the
Hiking
Hiking is the preferred term, in Canada and the United States, for a long, vigorous walk, usually on trails (footpaths), in the countryside, while the word walking is used for shorter, particularly urban walks. On the other hand, in the United Kingdom, and the Republic of Ireland, the word "walking" is acceptable to describe "all forms" of walking, whether it is a walk in the park or backpacking in the Alps. The word hiking is also often used in