I often go on long hikes, because I enjoy walking, like the scenery around where I live, and hiking provides an 'escape' from my day-to-day life.
I live in north-western England, near several hill and mountain ranges (the Pennines, the Yorkshire Dales, the Lakeland Mountains etc.), where I often go on camping trips, so when I am camping I can do some good hill walking in spectacular scenery. The furthest I have ever walked in a day is about 24 miles, which took me 8 hours.