Yarramundi Reserve is a sprawling, rustic adventure playground in Agnes Banks for the dog that was born to swim. This guide has the essential safety warnings and tips for this vast, natural reserve in the Hawkesbury, where river banks and open plains replace fences and manicured lawns.
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Yarramundi Reserve: At a Glance
- 🐾 The Vibe: A huge, wild, and natural river paradise that’s the ultimate adventure playground for water-loving dogs.
- 🐕 Best For: Adventurous, water-confident dogs with bulletproof recall. A must-do for a hot summer’s day.
- Off-Leash Hours: Off-leash is permitted at all times within the park’s opening hours of 6 am to 10 pm daily.
- Fencing: Completely unfenced, bordering two rivers. This is a wild, natural environment.
- 🅿️ Parking: Excellent. Two large, free, dedicated on-site car parks provide easy access to the river.

Dog Park Features & Amenities
For the Dogs
- CRITICAL SAFETY WARNING: Unfenced Rivers & Flood Risk. This reserve borders two rivers and is not fenced. It is only for dogs with perfect recall. The area is prone to flooding; always check conditions after rain and never swim in fast-flowing water.
- Natural River Swimming: The main attraction is the shallow water and sandy banks of the Grose and Nepean Rivers, creating a perfect natural doggie pool.
- CRITICAL: Be Self-Sufficient. There are no dog water taps or poo bag dispensers. You must bring fresh drinking water, a bowl, and your own poo bags.
For the Humans
- Good Facilities: The reserve has public toilets and picnic shelters located near the main car park.
- Strict Opening Hours: The reserve is open from 6 am to 10 pm daily, and the gates are locked outside these times.
- No Lighting: There is no lighting, making this a daytime-only destination.
Insider Tip: Treat this like a proper day trip, not just a park visit. Pack towels, a picnic, and plenty of drinking water for both you and your dog. The best swimming spots are found by walking a little way from the main car park to find your own private patch of sand.
The Final Verdict
Yarramundi Reserve is an incredible natural playground and one of the best dog-friendly swimming spots you will find anywhere. It offers a type of freedom and adventure that a typical urban park simply can’t match. However, that freedom comes with responsibility. It’s a place for prepared owners with well-trained dogs. For those who fit the bill, it is an absolutely unforgettable day out.
For more official information and to check for closures due to flooding, visit the Hawkesbury City Council website.
Yarramundi Reserve: FAQ
Q: Is Yarramundi Reserve fenced?
A: No, it is a completely unfenced natural reserve that borders two rivers. It is only suitable for dogs with 100% reliable recall.
Q: What are the opening hours?
A: The reserve is open from 6 am to 10 pm daily. The gates are locked outside of these hours.
Q: Is there fresh drinking water for dogs?
A: No, there are no dog water stations. You must bring your own fresh drinking water and a bowl for your dog.













