Yikes

The school year is almost over. What the heck? When did this happen? I am pretty sure I just said we have 2 months left.
The littlest goes to school next Tuesday and then he is done, til next year. He will be in VPK* then. The other 2 boys have 12 days left. That is all!
One on hand I am looking forward to not having to get up and run out the door every morning. On the other...Um what the heck am I going to do with them? My plans of lots of beach visits have been blown to bits by my knee injury. I am debating vacation bible school, but that is only one week.
We will do the usual; back yard pool/slip and slide, arts and crafts, baking, and movies (gotta love netflixs).
But all those activities will take up, oh about one week.
I need help from people far more creative than I am, please give me some ideas for summer fun!
* VPK is voluntary preschool, which is free in Fla. Since it is free and you get to pick your own school, pretty much everyone uses it.