Birding is also a great way to discover interesting environments in your home locale.

I ended up with an interest, since I was a toddler my parents tell me, that I cannot stay local for- wild cats. Unfortunately, I have to travel the entire globe to be able to see them in their natural habitats. But no matter where I go, there are always local birders, and locally to me there are tons of different birds. The only wild cats here are bobcats, which are very cool, but I've seen and photographed them a lot already. I wish I was interested in the birds.

Potentially geocaching too

Photography also works, or hell you can even photograph birds.

The Merlin bird ID app is eye-opening