Welcome to Plonk! Beach Cafe. Find the hidden gem with a picture perfect view, clear turquoise water and a white sandy beach. Plonk! offers relaxing dining by the water’s edge in a stunning location of Middle Harbour. We are serving modern Australian cuisine where you can choose from light salads, beef fillet, pasta or if you fancy a seafood platter for two. We also cater for large groups, Exclusive functions, Corporate parties or Weddings.