All work and no play makes you burn out and become unproductive when you are working, and something about being dull.
Brewing beer is much more than just making a tasty fermented beverage. It is a science, a feat of engineering, and an art. It is also making a tasty fermented beverage which is a plus.
I love hiking, going a on light jog on a trail, and just being outside (especially in the fall and winter, the summer does get too hot for me).