Flora: Lake Goegrup has extensive riparian temperate saltmarshes and estuarine fringing forests which are dominated by small saltwater sheoak (Casuarina obesa), saltwater paperbark (Melaleuca cuticularis) and samphire (Sarcocornia quinqueflora). The salt marshes are formed by tidal inundation and concentration of salts through water evaporation. Extremes in water quality from winter brackish and hyper-saline conditions have resulted in highly tolerant flora species dominating the area. Fauna: Due to the lakes large and shallow morphology, internationally migrating shorebirds and fish breeding zones are abundant in the area. Goegrup Lake serves as a key habitat to nankeen night herons and includes large populations of pacific black ducks, little pied cormorant, grey teals and yellow-billed spoonbill which utilise the mudflats in the area. Additionally, the lake has abundant water bird life, fish breeding and regular bottle nose dolphin hunting areas.

Lake Goegrup is made up of swamp and estuarine wetland deposits of clay, sand and peat that formed throughout the Holocene period. The site is characterised by aeolian and marine deposits. The geological landscape of the site is made up of four main landforms, being: Bassendean, Herdsman,Yoongarillup and Vasse. Flowing southward between the Bassendean and Spearwood dune systems, the Serpentine River enters Lake Goegrup—a wide, shallow wetland that has remained a permanent feature of the landscape for roughly 10,000 years.

The lake held significant cultural importance for the traditional Aboriginal inhabitants, the Burragup people, who lived in the area and utilised its resource. The lake served as a traditional camping site where fish traps were built and cultural practices took place. It later became a point of interaction between early European settlers and the local Nyungar people, which eventually led to conflict. The late Frank Nannup highlighted the deep cultural importance of Lake Goegrup to Aboriginal people, noting the abundance of artefacts such as spear-making materials, stones, and grinding tools scattered across former camp sites. Their presence suggests the area was home to a large and long-established Aboriginal community. Frank Nannup explained that Lake Goegrup was traditionally the land of the Burragup people, a group closely connected to other local family groups that lived around the Barragup lakes and moved through the region as part of their traditional lifestyle.

Identificational Signage is needed. No formal carpark is present. Trail towards Lake is uneven and overgrown