<p>An unusually high tide at Manly Beach attracted crowds and emergency services on Wednesday, December 6, after powerful waves forced the closure of a number of north shore beaches, the Manly Daily</a> reported.</p><p>According to the ABC</a> a supermoon caused Sydney Harbour to spill over, with the king tide reaching 2.03 metres earlier in the week. Credit: Instagram/Vaughan Monamy via Storyful</p><br />
