found another package of the same explosive that was detonated on site. Traffic along the Old Coast Road was disrupted as a result. Flora and fauna A white mangrove colony exists within the estuary. These are the most southern mangroves in Western Australia and are believed to be 2,500 years old. The mangroves inhabit an area of . A boardwalk with informative signage has been constructed around the Mangrove colony so that visitors can inspect the area. Waterbirds depend on the area for habitat. Up to 62 species of waterbird use the estuary, mostly feeding in the tidal salt-marshes. The estuary is also an important fish nursery area. See also Leschenault, Western Australia References Further reading Brearley, Anne Ernest Hodgkin's Swanland:estuaries and coastal lagoons of Southwestern Australia Crawley, Western Australia. University of Western Australia Press. Estuaries of Western Australia Coastline of Western Australia