The Orewa Estuary is located in the northern part of New Zealand's North Island, near the town of Orewa. This estuary is formed where the Orewa River meets the Hauraki Gulf, creating a rich habitat for various wildlife, including birds and fish. The area is known for its scenic beauty and recreational opportunities, such as walking, cycling, and birdwatching. The estuary plays a vital role in the local ecosystem, providing a nursery for juvenile fish and a feeding ground for migratory birds. It is also part of the Auckland Region, which is known for its diverse landscapes and coastal environments. Conservation efforts are in place to protect the estuary's natural resources and biodiversity.