It rises north-west of Kendenup and flows generally southwards until it reaches Oyster Harbour about 10 km north-east of Albany.[7] The fringing vegetation of the estuarine portion of the Kalgan River is dominated by the saltwater paperbark trees surrounded by dense stands of coastal saw sedge and shore rushes.The downstream freshwater parts of the river have a much greater variety of species, with a fringing forest that includes swamp paperbark, marri, jarrah, wattle and Western Australian peppermint trees.[8] Many wild flowers can be found along the Luke Pen Walk, a trail that follows the river for 9 km before it reaches Oyster Harbour.[9] The estuarine end of the Kalgan River is good fishing for many species including black bream, with a few skippy, herring, mulloway and whiting.The freshwater parts of the river also support an enormous variety of birds including nankeen kestrel, Australian hobby, wedge-tailed eagle, short-billed black cockatoo, long-billed black cockatoo, galah, little corella, purple-crowned lorikeet, red-capped parrot, laughing kookaburra, willie wagtail, white-breasted robin, splendid fairywren, New Holland honeyeater, red wattlebird and red-eared firetail.[15] The Government Jetty was also built in 1906 so that timber and other construction materials could be delivered adjacent to the Lower King Bridge site.As the wife ran through the bush, her digging stick trailed over the Earth and cut open the soil behind her forming the path of the Kalgan river.
Mouth of Kalgan River into Oyster Harbour
Oyster harbour from lower Kalgan bridge
Lower Kalgan bridge from east bank
Government Jetty with Lower Kalgan Bridge to the left