What is there to do?

In Carlisle (Pennsylvania) is a sports place (go karts, laser tag), a distillery, some farm markets, a US Army Education Centery, Letort Park (with Fort Letort), Boiling Springs Pool, and three or four museums.  You can also visit Harrisburg which is not far - it is the Capital of Pennsylvania.  And it is only 45 minutes to Hershey's Chocolate World