Make ice cream sandwiches.
Sell your old stuff at a garage sale. You’ll clean out your room and make a little cash at the same time.
See one of those big blockbuster summer movies. Bonus points if it’s in 3-D.
Build sandcastles on the beach.
Get a job.
Go for a walk (or a jog, or a run) in the park.
Make a bird feeder and wait for someone to stop by and check it out. (It’ll probably be a bird.)
Get some sidewalk chalk. Play hopscotch and four square.
Fill up some of your community service hours.
Help out in your parents’ garden. Or start a little garden of your own. (How about growing some blueberries?)
Participate in a charity walk.
Lay out by the public pool (with plenty of sunscreen on, of course).
Get together with some friends and make a movie. Don’t forget to write a script, make costumes, and pick the best location. Or if you’re flying solo, go to a local event and make a documentary about it.
Set up your sprinkler in the backyard (or the front yard, if you dare) and run through it.
Go to an outdoor concert.
Make popsicles in fancy flavors. Eat them all yourself, or set up a stand and sell them to passersby.
Go fly a kite. Here’s how to make your own.
Go boogie boarding at the beach.