London Bridge, Portsea, Mornington Peninsula, Victoria, Australia. Tapestry

London Bridge, Portsea, Mornington Peninsula, Victoria, Australia. London Bridge is a well known, hollowed out sea stack that can be viewed from a lookout at the end of London Bridge Road. On either side of London Bridge are two high tide platform beaches, backed by 30 to 40 m high calcarenite bluffs and fronted by continuous intertidal rock flats, with reefs further offshore. Waves average 1.7 m on the outer reefs, with their height at the beach depending on the tide. The narrow sand beaches are awash at high tide, but fronted by exposed rock flats at low tide.