How could one make the most of their free time?

Today I excercised,played basketball, cleaned up the house, did yard work, cook, and planned to go shoot pool at 730.Unfortunately the guy im supposed to shoot pool with flaked out and Im not gonna waste my time on him. However I do get alot of people that flake out and it leaves me with nothing to do, I hate being unproductive. Im an adrenaline junkie I love outdoor sports and activities, motorcycles, and I also love traveling(that takes alot of time and money). I live in the city now so all those things that I listed is very limited. What could I do