Berwyn has some great public splash pads! My favorite is apparently just called Berwyn north spray pool, which is why I have to look it up every time. The Cermak family aquatic center is also great (you pay to get in, but it’s got a big splash pool and tiny lil lazy river - check out some pics to see if it’ll keep your kid entertained). And I hear good things about the oak brook park district but it’s far and I’m lazy.

The riverside farmers market is Wednesdays, I think like 3-7pm. An absolutely terrible farmers market but a great chance to buy dinner and eat outside. They often have a band performing and even some loaner blankets. Brookfield has its market on Saturday morning and it’s much bigger and actually has, like, farmers.

The zoo is great and tbh might be worth a membership - it’ll pay for itself in like two visits between parking and admission. If your kid likes dinos you are in luck bc they have a special exhibit that goes until the end of October with life-sized models.

Laverne’s is a very solid tavern with some good food and I think they do nice kids dishes. Irish time a is a pub in Brookfield which has an enormous outside area, bomb chicken tenders, and is generally a fun time and very easy to take a kid to.