GR1: Stage 5 - Cergy-le-Haut to Us (18 km)

Hello everyone!
GR1 Tour de Île-de-France – Stage 5
Let’s continue our trek around Paris with another stage of the GR1, once again in the Parc naturel régional du Vexin français. We’ll explore a varied landscape of forests, open fields, and small villages — a great opportunity to discover the far west of Île-de-France. This segment is characterized by more open countryside, crossing through villages typical of the Île-de-France rural landscape.
This section lies at the very edge of Île-de-France, takes longer to reach, but is especially interesting to explore.
The GR1 Project is an opportunity to explore the natural beauty of the Île-de-France region, all within easy reach of Paris. Spanning a total of 550 km, this circular trail goes around the city in a clockwise direction, offering a unique way to discover peaceful landscapes, charming forests, and picturesque villages surrounding Paris.
🗺️ Our trail: https://mapy.com/s/babamukevo

📍 Meeting Point
Sunday, Jan 25, at 10:30 AM
Cergy-le-Haut RER A station – in front of the station.
To get there, take RER A from Châtelet–Les Halles (or anywhere convenient for you).
The exact departure time is not yet available — I’ll follow up with the precise train and schedule.

🎯 Ending Point
We will finish at Us train station. From there, train line J goes to Gare Saint-Lazare.
(The exact timetable is not yet available.)

🥪 Lunch
We’ll stop for lunch/snacks in the forest, so please bring your own food and water.

📏 Hike Details

• Distance: ~18 km
• Elevation gain: +160 m
• Duration: ~5 h (including breaks and lunch)
• Difficulty: Moderate – you should be comfortable walking 10–15 km in your day-to-day routine.
• Language: English – ideal for expats and anglophones living in or visiting Paris.

You are responsible for your own actions — please make sure you feel comfortable with the distance and act responsibly.

🎒 What to Bring

• Small backpack
• 1L of water
• Lunch/snacks
• Comfortable walking shoes
• Rain jacket or umbrella

⭐ Participation
€10 per person, cash or via Revolut/Lydia, payable at the end of the hike.
(If you don’t have a Navigo Pass, a round-trip train/metro ticket is about €5.)
See you there!
Mihai