You can dive on any side of the island, but we found the west side to be the best. Swim around all of the rocks and ledges, or you can go out further west and find a patch of ground. You will be surprised at what exists underwater.The seals and sea lions are a lot of fun to swim with, but can be unpredictable. Some days they are very playful and will stick around for a long time when you are swimming, whilst other times they will get going pretty quickly.
Finding a place close to Perth in a boat, Carnac island and Garden Island or Rottnest island is about as good as it gets.
The island itself is popular for people to Moore Carnac Island is truly an awesome place to spend the day
Carnac island is a good location. You will have a lot of fun! if you haven’t been I would highly recommend it.
The island is a great place, belongs to various wild animals and that’s how it should stay