Maomao Arch at the Poor Knights Islands presents divers with a stunning passage from the island's western to eastern side. The towering walls reach depths of 30 meters, while the arch's interior is a shallow playground at just 5 meters. Explorers will find impressive boulders and a quaint cave at around 20 meters on the eastern side, adorned with vibrant invertebrates and lively schools of pink and blue Maomao and other reef fish.
