stuff to do for summer break

You could try rollerskating outside on a empty road with incline skates that are meant to be used indoors. That is the only thing that I could think of for a daredevil like you. Although you can also go to a store that have shopping carts (walmart, target, groceries, etc) and put small products into random people carts (make sure that they are filled with items). It is harmless but it would be entertaining to watch someone get to checkout and realizes that they had a product that they didn't want.

Try going to a abandoned building and making it a hangout or something. You could try to find places on discord to play games with people or try to like make or join a band. (Srry kinda bad at this)

Start some sort of insanely ambitious project (could be creative, could be techy, whatever), and see if you can complete it in the time you have. Get friends involved if you want, but the main thing is seeing if you can just do something that is insanely challenging to complete. 

take pool noodles and cut them up into a bead-like shape and string them all together to make one of those kandi lizards that doubles as a big pool float!!!!! you can find tuts on tiktok or insta