Having spent 40 years committed to an indoor career (Medicine), I always tried to get outdoors when possible, whether it involved yard work, birding or hiking. Indeed, almost all of our vacations were to locations where outdoor activities were the primary attraction.
Of course, my lifelong interest in nature has been the primary reason for a preference to be outdoors, especially since that proclivity has led to an endless chain of new observations and experiences. While the opportunity for exercise has often been a factor, an immersion in the natural environment, whether that be the backyard or a remote wilderness area, has been the primary draw.
Now, closer to the end of my days on this planet, I have much more time to indulge my passion but a bit less energy to do so. Though nature walks remain part of my routine, a comfortable chair on the back deck or an unhurried tour of our property (whether in Colorado or Missouri) are more commonly employed. After all, nature's residents can always be relied upon to pay a visit.