What can young teens do over the summer?

I’ve got a 14M and 15F to young to work yet and we can’t afford the day camp and summer camps in our area. Most of their friends tend to travel over the summer and we can’t do the same because of financial issues. Because of this, most summers they spend lying around the house repeatedly saying how bored they are. Any ideas from the parenting crowd? via /r/Parenting https://ift.tt/36KIw12