Just stumbled upon this thread... I've done one summer and two winter clinics. The winter is more fun as you get to actually play games.
I was a bit shocked when on the first day, Kevin lined us all up (we were all mostly in our 30's and 40's) and proceeded to yell: "I'm gonna skate ya hahd and yah gonna be sore tomarah! And if you ain't sore, ya ain't doin it right!" Hilarious. Then he made us do push-ups if we missed the net.
There's another guy who helps run it (forgot his name) who was actually drafted by the Rangers.
All in all, a very good work-out, lots of fun and excellent if you are new or getting back to the game. And beers in the lockerroom.
Thinking about doing one again...