In case you have forgotten, San Diego's very own Balboa Park offers us a wide variety of activities that vary from Free Museum Tuesdays to lawn bowling and bocci ball...Yes ladies and gentlemen, it's free and for real. Our pals have listed 25 fun and affordable things to do this summer that won't put a hole in your pocket.  You don't even have to waste your gas money to get there because it's right next to the trolley and coaster stops. Alright ya'll hopefully I'll see you at one of the " Screen on the Greens"!