The Irwin River: Dongara’s river mouth
Dongara and Port Denison sit at the mouth of the Irwin River. Here's why it matters to the towns.
Dongara and Port Denison grew up around the mouth of the Irwin River, which also gives the local shire its name.
Where the river meets the sea
The river mouth sits between the two towns. It’s a quieter spot than the open beaches, with calm water at times and plenty of birdlife.
Walks and picnics
The river area is popular for walks, picnics and a peaceful afternoon.
The Shire of Irwin
Hidden Valley is in the Shire of Irwin, which covers Dongara, Port Denison and the surrounding area. It’s the local government you’ll deal with for building approvals and council services.
Explore the location
See the beach, the towns and the drive times on the interactive map. Open the map →
Common questions
Which shire is Hidden Valley in?
The Shire of Irwin.
Where is the river mouth?
Between Dongara and Port Denison.
Questions? Talk to Terry.
Ask about lots, the contract, building or visiting and Terry will call you back.
- $10,000 deposit secures your lot
- Nothing more to pay until settlement in mid-2027
- Construction commences October
Keep reading
Living in Dongara and Port Denison
Twin coastal towns 3.5 hours north of Perth, with beaches, fishing, the marina and everything you need day to day.
Read the guideA guide to the beaches around Dongara and Port Denison
Long, uncrowded beaches are the heart of life here. Here's what to expect on the coast near Hidden Valley.
Read the guideFishing around Dongara: a complete guide
Beach, rock, river and boat fishing, the marina, the Abrolhos Islands, rock lobster, licences, gear and how to set up your lot for a fishing life.
Read the guide