One of the things about the ocean you come to love, the very real chance for discovery. Unlike 90% of our terrestrial environment almost every month we discover new things about our ocean environment that challenge perceptions, and make you excited to be part of the planet. Today was one of those days: WHAT could be the world’s largest concentration of juvenile great white sharks has been discovered swimming within metres of the sand on the state’s Mid-North Coast.Twenty-seven great white sharks were spotted in one day by a boat team videoing for a fishing DVD last week near Port Stephens. Editors Note: Similar aggregations of Y.O.Y (young of the year) are seen off the coast of So Cal each spring during the annual grunion run.