Normally, to penetrate a wreck you either had to be a technical diver or have your wreck speciality certificate. However, regular maintenance has been carried out on the HMAS Brisbane. As a result, the wreck is available for penetration for divers holding an open water certification.
Normally, many divers visit the HMAS to complete their Advanced Adventurer Course and Wreck Diver Course. Meanwhile, the stern of the HMAS is located at a depth of 28 metres. Additionally, the bow is found at 18 metres. As you descend into the wreck from the drop line, you come aboard the bow and are greeted by the forward gun (bang bang). Upon entering the HMAS Brisbane, you can swim through the engine or control room. This room in particular gives a little eerie feeling that makes the dive that more exciting. At the right of the engine room, you find the kill switches still intact; suddenly, you realise this was once a warship. Importantly, the specially designed man holes allow light in all parts of the wreck. As a result, you are always able to see an exit out of the wreck to safety.
In addition, I’m consistently being surprised every time I dive HMAS Brisbane. Personally, I have observed yellow tail king fish hunting the surrounding reef fish. I have also heard whales communicating with each other. Finally, be ready to come face to face with a giant cod that has made this sanctuary his home. Spooky!