Hello i am 14 years old and i am from Australia. I was wondering if あなた knew if Peter pan could come to Australia even thought it is winter.

I'm not an expert but I'm assuming he can. I wouldn't know the exact reason why he couldn't.

There is know reason that he shouldn't be able to. Unless he was captured によって Captain Hook which I highly doubt. So follow your dreams!

Yes Peter visits all over world.

Peter does visit all over the world, but since it's winter he might not visit much. ( Warm 妖精 such as Tinker ベル don't like being in cold weather, and he wouldn't want to put her at risk ). Try planning adventures you'll have with Peter in the summer, または talk to Jack Frost! He's out there too! :)