From 9 May 2026 to 31 December 2029, the Étangs de Bonnelles Nature Reserve invites you to discover a haven of peace in the heart of the countryside. Enjoy immersive walks along the banks of its picturesque ponds and admire its rich historical heritage.
Practical information
| Dates | From 9 May 2026 to 31 December 2029 |
| Address | La Réserve Naturelle des étangs de Bonnelles, la réserve naturelle des étangs de bonnelles, 78830 Bonnelles |
| Updated | 24 July 2026 |
Why go?
This nature reserve is notable for its peaceful landscapes and charming 18th-century buildings. Open all year round and free of charge, it is a true oasis of tranquillity in the Île-de-France region, perfect for lovers of nature and history.
What to see / do
The reserve offers a number of fascinating points of interest for visitors.
Good to know
Entry to the nature reserve is free and it is open all year round. Don’t forget your camera so you can capture the beauty of the landscapes and the buildings.
How to get there
Access by car or public transport. Check local bus timetables if you have any specific questions about routes.
What to do nearby?
Nearby, you’ll find several walking trails and picnic spots. Do feel free to explore the charming surrounding villages.
Things to bear in mind
| Top photo spot | The banks of the ponds at sunrise |
| Ideal for | Nature and history lovers |
| Estimated visiting time | 2 to 3 hours to appreciate the places |
| Best time to visit | In the morning for tranquility |
| Nearby activity to combine | Combine the visit with a hiking trail in the Yvelines |
Frequently asked questions
What is the entrance fee for the reserve?
Entry is free.
What types of activities can you do there?
You can enjoy walks, observe wildlife, and explore the historical heritage.
Is the reserve accessible for people with reduced mobility?
Accessibility has not been specifically indicated.
Are there any visiting constraints?
The reserve is open all year round without any particular constraints.
What is the best time to visit?
Each season offers a different view: spring for the flowers, summer for the greenery, autumn for the colours, and winter for the tranquility.