Depends on thr event going on. With no event.. Ice Burg
Pet shop is the room where there is no music playing in the background on club- - penguin
the ski lodge
the book room. :)
your house and you can also mute the music in club penguin settings
Beacon
sport shop of course
the ski lodge
I think you have to meet them before you can get there background but I am not very sure
the ice berg and forest but only some times
You have to become his buddy and find him online.
The volcano in Club Penguin is in the background of the Dojo courtyard.
You have to meet them!