Dee Why is a suburb of Sydney, Australia, located in the Northern Beaches region. It is located approximately 20 kilometres north-east of the Sydney central business district in the local government area of Warringah Council. Dee Why is a popular beachside suburb, with a long beachfront, a large shopping centre, and a variety of restaurants and cafes. The suburb is also home to a number of parks and reserves, including Dee Why Lagoon, which is a popular spot for birdwatching. Dee Why is well connected to the rest of Sydney, with regular bus services and a train station on the Northern Line.