Hiking could be a great way to obtain some exercise and obtain outside. You could have good quality hiking paths nearby that can allow you to get in touch with nature. Get a friend, pack a picnic and hike to a hidden place to enjoy lunch. To enjoy to the fullest buy the best hunting binoculars and pack it with you as you go hiking.
If you'd want to garden as a hobby, slightly of planning could go quite a distance. First, decide how much room you have that's great soil and gets enough sunlight. Then determine the kind of flowers that you want to grow.