How expensive is it to do Crew (rowing)?

I'm going to be a sopre in high school and I'm interested in doing crew. Sadly, my school doesn't offer crew. I don't know where I could go to do this amazing sport. I live near the scranton wilkes-barre ,PA area (to give you an idea of where I'm at so you could tell me of Rowing places i could go to). How expensive of a sport is it to do? Training for it?