 Drawing its catchment from a small creek and the southern half of Lake Munmorah, Budgewoi Lake is located north of Wallarah Point and is bounded by Toukley, Budgewoi, Buff Point, Charmhaven and Gorokan.To the south of the lake, the Tuggerah Lake drains excess water, that flows to the Tasman Sea of the South Pacific Ocean, via The Entrance.When full, Budgewoi Lake covers an area of around .