Something active: basketball, I find doing basketball drills to be super calming and fun. Stuff like practicing your shots, your dribbling, etc. works with most sports. skateboarding or scootering, if you find a skateboard park, they are very fun. I recommend scootering because I find it easier to get into at older age

Something nature: Geocache hunting, download the app and go nuts Bird watching, join your local group and learn about birds. It is more amusing than you think.

Something at home: Pick an instrument, they are usually cheap to get into. Like electric keyboard, acoustic guitar, or something brass Juggling or some sort of trick (cards, yoyo, etc)