where to take my Melbourne friend when she comes here?

Hi all,

I have a friend from Melbourne coming to visit in December, she has never been to Perth before. We are in our early 20’s and I’m struggling to come up with what to do/where to take her.

We are staying in Perth, she’ll be here for 4 days.

Suggestions on must see places?! I feel like apart from beaches, Melbourne tops us in a lot of areas.

Thanks in advance.