Sydney is place that is rich in large beaches. It offers several things to see from flapping eagle rays large elkhorn coral for hours. Do you know what is snorkeling? It is swimming practice through or on the water body with snorkeling tube to breath, diving mask and swim fins. https://luxuryandaccommodations.wordpress.com/2019/08/28/get-the-information-about-the-freedive-instructor-courses/