Cocklebiddy Cave is a well-kept secret for advanced divers looking for an extreme cave dive. Australia is home to many weird and wonderful things, and Cocklebiddy Cave is no exception. Known as the longest underwater cave passage in the world, this cave dive is unfortunately not for the faint hearted and is suited for experts only.
The rock chambers are in a honeycomb pattern and measure a staggering 8 kilometers of dark, creepy caves filled with all sorts of unknown wonders. Or so we’ve heard. Apparently less than 100 people have actually entered the cave, so you would certainly be entering unchartered territory should you choose to visit.