Milford is a suburb of Auckland, New Zealand's largest city. It is located on Auckland's North Shore on the northern side of Lake Pupuke. It also has a popular swimming beach, which runs some two kilometers from Black Rock in the south to Castor Bay in the north. The Wairau Creek empties into the Hauraki Gulf at the northern end of Milford Beach, and its lower tidal reaches host the Milford Marina.