The northern shore of Moreton Island faces north-west and extends for 11 km between low, sandy Comboyuro Point and 20 m high, rocky North Point. While this is a lee shore and waves average less than 1 m, decreasing to the west, it is nonetheless a very dynamic shoreline, with the low, sandy Heath Island comprising two crenulate sand spits. Heath Island (MOR14) is a convex, crenulate, low sand island that protrudes up to 1 km north of the backing vegetated shore of the main island. In between is an extensive shallow lagoon, drained by a creek across the beach at the northern tip of the protrusion. Sand waves move from east to west along the island shore, causing substantial oscillations in shoreline position and character. Generally, ocean waves average less than 1 m in the east, decreasing to the west. When the swell is up, the waves run westward along the beach, pushing the sand and sand waves to the west. read more

Beach Length: 6km