If koalas and kangaroos tickle your fancy, then the Yanchep National Park in Perth is just for you. The 240m-long koala boardwalk not only allows you to see these adorable creatures, but also learn more about them. If you want to spot a western grey kangaroo, either try searching when the sun is not shining so brightly or look for them in the more shaded areas.

Cave explorers will relish the opportunity to sample any number of their caves, of which there are over 400. One fascinating cave is the Crystal Cave; an underground limestone cave that makes you feel like you are inside a crystal. Opt for the 45-minute guided tour to explore the cave and all its glory.