Plays at the Bushnell and Warner theaters, Bradley Playhouse, concerts, musicals at Goodspeed Opera House; White-water rafting, sailing, hiking trails (the Connecticut Blue Trails), beaches, even...
There's a ton of fun things to do in Connecticut. Depending on who you're traveling with, I suggest you rent a car or a 15 passenger van. Then you'll be free to check out all the awesome sights...