Tabourie Lake is a coastal estuary, or Intermittently Closed and Open Lake and Lagoon (ICOLL), located south of Ulladulla on the New South Wales South Coast. This tranquil, brackish water body is characterized by its connection to the ocean through a dynamic sand barrier at its entrance. The lake's water levels and salinity are governed by natural processes, with the entrance typically closed by wave action and only opened artificially by Shoalhaven City Council when water levels reach a predetermined trigger to prevent flooding of low-lying areas. This creates a unique estuarine environment that transitions between closed lagoon and open tidal inlet conditions. The surrounding area offers unspoiled beach and lake frontage, with a mix of natural foreshore and residential development along its canals.