Rottnest Island is an easy ferry ride from Perth or Fremantle.  From Fremantle it’s only 25 minutes, but if you do it from Perth, you get a bonus cruise on the Swan River.

Trips in the same area:

Pinnacles Tour

Margaret River Tour

Perth

Desert Awakenings - Uluru

Ayers Rock and Kata Tjuta Sunset

Ayers Rock Flight

Ayers Rock

Harbour Bridge and Opera House

Hunter Valley Wine Tasting

Blue Mountains

Sydney

Lone Pine Koalas

Brisbane

Noosa

Noosa Everglades

Fraser Island

Tiger Moth Flight

Whitehaven Express

Airlie Beach

Australia Underwater Videos

Port Douglas