Castlecrag is a suburb located on the lower North Shore of Sydney, Australia. It is known for its unique architecture and natural beauty, featuring a mix of residential homes and bushland. The area was designed by the famous architect Walter Burley Griffin, who aimed to create a harmonious relationship between the built environment and nature. The suburb is characterized by its hilly terrain and scenic views of Middle Harbour. Castlecrag offers various parks and walking trails, making it a popular destination for outdoor enthusiasts. Its close-knit community and proximity to Sydney's city center contribute to its appeal as a desirable place to live.