St Kilda is a coastal suburb in Adelaide, South Australia. Its seafront faces the Barker Inlet, which is part of the Port River estuarine area, the largest tidal estuary of Gulf St Vincent, and includes a large area of mangroves. St Kilda is an internationally recognised bird watching area with over 100 species of birds feeding in and around the mudflats, salt lagoons, mangroves and seagrass beds, which are part of the estuarine ecosystem. The suburb is home to a number of tourist attractions, including an adventure playground, tram museum, mangrove forest walk and an abundance of birdlife.