Go to the map, click on Igloos (a picture of a bunch of igloos), and click on your username.
the light house
yes of course
you go to your penguin's house then you see a picture of a house click on it and there you go
by a bigger house
at the light house
you can't
your house and you can also mute the music in club penguin settings
go to your home and start building
the light house is where the beacon is
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in the lite house
Yes if your a member.