Final answer:
Sydney Harbour is the busiest port south of the equator.
Step-by-step explanation:
Yes, Sydney Harbour is indeed the busiest port south of the equator. Sydney Harbour, located in Australia, is a major port that handles a significant amount of shipping activity. It is known for its bustling maritime trade, serving both domestic and international vessels. The port's strategic location, deep waters, and modern facilities contribute to its prominence as a key transportation hub.