I have 2 very active kids, and every summer I remember all over again what the heat does to us. By 11 in the morning the apartment feels like a greenhouse, the balcony floor is warm under our feet, and my 2 are already climbing the couch looking for their next mission.
I am constantly trying new activities with them — I set something up with real hope in my heart, and then, 1 minute later, it is over. The playdough is on the floor, the crayons are abandoned, someone is asking for a snack, and I am wondering what just happened.
So over the last couple of summers I started keeping a very short mental list: the baskets that actually hold my kids for a real stretch of time. Not 5 minutes — 30, sometimes a whole hour. The ones where I can pour myself a cold coffee, sit on the balcony, and just watch them play.
These are the six activities that keep coming back. Most of them involve water or ice (of course), most of them can live on the balcony or a big towel by the door, and every single one of them has bought me a peaceful morning on a very hot day.
Tip
The activities that last the longest almost always involve water, ice, or a repeatable mission ('rescue all the animals', 'wash every car'). Keep 1 'long' basket ready in the freezer or on the balcony shelf at all times — future you, on a 35°C afternoon, will be very grateful.