Heralded as the wealthiest postcode in Australia, pretty Portsea on Victoria’s Mornington Peninsula remains warm and welcoming, writes Luke Wright. Out & About: Portsea Heralded as the wealthiest postcode in Australia, pretty Portsea on Victoria’s Mornington Peninsula remains warm and welcoming, writes Luke Wright. Elementary, my dear Watsons At the end of Victoria’s boot-shaped Mornington Peninsula, one half of the pincer-like promontories that almost enclose Port Phillip Bay, lies pretty Portsea. Less than 100 kilometres from Melbourne, with a few shops and only a few hundred people, the tiny town with the big reputation is regularly ranked as Australia’s wealthiest...