Streetdirectory.com Greendale Secondary School is located at Punggol, a district in northeastern Singapore. It is situated near Pasir Ris and Sengkang districts. Much of Punggol is still undeveloped, but several residential buildings can be found here. The basic needs of Punggol residents are served by Punggol Plaza, NTUC Fairprice supermarket, and several clinics here. Food-related needs are also taken care of with several coffee shops and food courts serving local food. Punggol, however, is more well-known for its fresh seafood restaurants. You can indulge in chili crabs, lobsters etc at several seafood restaurants at Punggol Marina, namely Pulau Ubin Seafood and Punggol Seafood.