The simple things
We go to the park with the nice, huge play area and baby swings, and big kid swings, and a sandbox, and lots of space for running around. There’s also some kind of fitness area, presumably for adults to use (presumably in the early morning before kids get there because I’ve never seen anyone seriously using the area for fitness). And everywhere, there are tiny pebbles; it’s a relatively new trend to use them instead of sand.
So, forget the nice huge play area, the baby swings, the big kid swings. Forget the sandbox and running around space. The toddlers congregate, I kid you not, at the adult fitness area, and spend the bulk of their playground time putting pebbles on the flat surfaces and then brushing them off.
It’s seriously the best thing ever, because it’s a great way to start a conversation with another adult. Also, you don’t have to run after your kid, ever. They’re sitting there playing endlessly with the rocks.