The Royal Botanic Gardens is located in Sydney and is the largest of three gardens open to the public.  The Royal Botanic Gardens opened in 1816, and can be freely accessed by the public every day.  Located to the east of the Harbour Bridge, the Royal Botanic Gardens take up 30 hectares of land, making it the largest garden in Sydney.   Restaurants are located around the garden, and several tables and barbecues can be found throughout the park.  There are several monuments spread over the park, such as the glass pyramid greenhouse, and lakes or ponds with water features.