The Royal Botanic Gardens were established in 1816 and cover thirty hectares. They are the oldest scientific institution in Australia. The gardens are easy to find being very close to the Sydney Opera House

flickr image by
Rob Young
The botanic gardens are relatively informal and have plenty of open spaces. There is a rose garden, cacti display and rain forest area. Mrs Macquarie's Chair along the coast path offers good views of the Opera house and Sydney Harbour.
Free guided tours last 45 minutes and run every morning at 10:30. The meeting place is at the Visitors Centre on Mrs. Macquarie's Road which is also the entrance.
Inside the gardens is the Botanic Gardens Restaurant which overlooks the gardens at Palm Grove. (02 9241 2419).
Take the train or bus to Circular Quay or Sydney Explorer, Stop 5. (02 9231 8111).