Avoca Lagoon is located between Cockrone and Terrigal Lagoons. The lagoon has a surface area of approximately 0.63 km2 and a catchment area of 11.6 km2. Much of the upper catchment is rural land, predominantly farm land or undeveloped forest. The immediate North and North-east side of the lagoon lies the suburb of North Avoca and to the South, the suburb of Avoca.

The bed level of the lagoon varies from 0.0 m to 1.5 m AHD (Australian Height Datum), however there are some deep dredge holes down to -4.0 m AHD. As the lagoon is generally closed by the beach berm, the water levels inside the lagoon are not usually influenced by the ocean tides.

Gosford Council Facts Sheet and Project Activities

Lagoon Rehabilitation Plans here – https://cdn.centralcoast.nsw.gov.au/sites/default/files/coastal-zone-management-plan-for-gosford-lagoons2015.pdf