I love nature and the outdoors, from beaches to rainforests to mountains to waterfalls, to deserts and everything in-between.
I do struggle though with being in it for too long, such as camping, and hiking can also be difficult depending on how intolerable the conditions are (like I struggle when there's lot of mosquitos, it's hot and humid, etc.)
I'd rather hike/walk with the proper equipment along a natural beach/rainforest mix, at least the ocean breeze would keep my cool and I could stay hydrated with water.
I haven't hiked too much though but want to get into in someday.
A new hobby of mine is, strangely enough, tree-climbing. I was never good at it as a kid, but nowadays I have the body for it and like to test myself by climbing them as quickly and carefully as possible.
I also enjoy 'natural' parkour/freerunning (running, jumping and climbing up, through, below and over trees, rocks, hills, streams, etc.), but there's only one decent spot I've found for it so far. It's almost the perfect spot for freerunning.
Exploring natural places and jogging on the beach are also always nice experiences.
Aside from the exercise aspects, I also like the fresh air, feeling of the wind/water/air, visuals and sounds of most natural places, it sounds and feels very relaxing and meditative for the mind.