Summer Survival - the bickering

Oh the bickering, whining, picking, and boredom.  Entertaining the kids during summer break sometimes feels like it should be a full time job.  My kids are in bickering mode which leads to a lot of tattling and whining.  I am so ready to just put them all in their rooms and tell them they have to read quietly the rest of the summer.... I can only dream LOL!  I wonder what other mom's are doing to keep their kids preoccupied during the summer.