Port Phillip Bay is known not just for its rich history and coastal defences but also for its resident population of approximately 120 Burrunan dolphins (Tursiops australis). These unique creatures can only be found in southern and south-eastern Australia and are easily recognisable by their tri-colouration pattern on their bodies; dark grey dorsally, mid-grey along their sides, and a white underbelly that can extend over the Eye, as well as their curved dorsal fin and stubby rostrum. Each dolphin can be identified by the unique nicks and notches found on their dorsal fin. These dolphins use echolocation to communicate, hunt prey, and navigate. Their wide-ranging acoustic repertoire includes buzzes, whistles, squeaks, and squawks, making them fascinating creatures to observe.

From the Yarra River to the Port Phillip Heads, burrunan dolphins can be found throughout Port Phillip Bay. They can often be spotted bow-riding or doing spectacular leaps beside or near the ferry, adding extra excitement for visitors to the bay. In fact, the word "Burrunan" is an indigenous word used across three of the main dialects in the Kulin Nation and translates to 'large sea fish of the porpoise kind'.

Ensure you catch a glimpse of these magnificent sea creatures that call the bay home. The presence of the Burrunan dolphins not only adds to the beauty of Port Phillip Bay but also serves as a reminder of the diverse range of wildlife that call Australia home. As we continue to explore and appreciate this breathtaking bay, let us also strive to protect and preserve these magnificent creatures for future generations.