Becher Point Wetlands are shrub swamps and seasonal marshes that have formed in an extensive sequence of inter-dunal depressions, which have themselves arisen from seaward advancement of the coastline over recent millennia. This type of wetland system is rare in southwestern Australia, while examples of this type of geomorphological sequence in equally good condition and within a protected area are rare worldwide. The series of wetlands within the Site exhibits a continuum of development in geomorphology, hydrology and vegetation and is considered to be a unique wetland system in Western Australia, and one of the youngest wetland systems on the Swan Coastal Plain. The sedgelands of the Site are included in the national list of threatened ecological communities. Land use within the Site is confined to nature conservation, and the surrounding areas are residential.