Greenhills Beach (also known as North Wanda Beach) is an unpatrolled beach on Bate Bay, located in Kurnell, New South Wales. The beach is located roughly 18 kilometres from the Sydney central business district, in the local government area of the Sutherland Shire. Recognized as one of Sydney's longest beaches, Greenhills beach is roughly 3 kilometers in length and forms part of a chain of beaches residing on Bate Bay. It is the northernmost section of the Greenhills-North Cronulla beach complex and is the only section of the beach not to be patrolled by a Surf Club or by volunteer lifesavers.