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Saclay Pond – Côte des 17 Tournants loop from Villejuif - Gustave Roussy

Saclay Pond – Côte des 17 Tournants loop from Villejuif - Gustave Roussy

Moderate

4.5

(2)

120

riders

Saclay Pond – Côte des 17 Tournants loop from Villejuif - Gustave Roussy

03:21

78.6km

570m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: April 19, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 30 m for 54 m

After 5.47 km for 65 m

After 52.5 km for 143 m

After 78.6 km for 54 m

Waypoints

Start point

Train Station

Get Directions

345 m

Redoute des Hautes Bruyères

Fort

10.1 km

La Coulée Verte

Forest

20.1 km

Saclay Pond

Highlight • Other

Two very beautiful ponds on a road that takes you either to Saclay or to Jouy-en-Josas. The detour to this haven of peace is worth it.

Translated by Google •

Tip by

24.4 km

Belle Image Hill

Highlight (Segment) • Climb

Shaded side and easy to do. On the other hand a lot of cars.

Translated by Google •

Tip by

33.1 km

View of Château de la Madeleine from the Town Center

Highlight • Viewpoint

at the bend of a bend, approaching Chevreuse, the majestic chateaux dominating the city appears, surprising, romantic, grand!

Translated by Google •

Tip by

37.3 km

Dampierre-en-Yvelines Castle

Highlight • Castle

Castle well known to cyclists for its small paved strip which wakes up before going up the 17 turns.

Translated by Google •

Tip by

37.9 km

Côte des 17 Tournants

Highlight (Segment) • Climb

As beautiful uphill as downhill! Be careful however to remain vigilant because cyclists, bikers and motorists share the road.

Translated by Google •

Tip by

51.7 km

Magny-les-Hameaux climb

Highlight (Segment) • Other

Not steep but rough :)

Translated by Google •

Tip by

56.1 km

The Château de la Barrerie in Villiers‑le‑Bâcle

Highlight • Other

Built in the 19th century, it includes neo-Gothic, neo-Moorish, neo Louis XV, neo Louis XVI and Art Deco elements! Its slender turrets topped with conical roofs, and its finials with …

Translated by Google •

Tip by

56.3 km

Villiers-le-Bâcle Hill

Highlight (Segment) • Forest

The coast of the debacle :)

Translated by Google •

Tip by

78.6 km

End point

Train Station

Way Types & Surfaces

Way Types

43.5 km

19.3 km

12.3 km

2.53 km

550 m

547 m

Surfaces

76.6 km

1.16 km

341 m

306 m

227 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (170 m)

Lowest point (50 m)

Weather

Tuesday 23 June

40°C

24°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

to get more detailed weather forecasts along your route

Comments

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Saclay Pond – Côte des 17 Tournants loop from Villejuif - Gustave Roussy

Saclay Pond

Belle Image Hill

View of Château de la Madeleine from the Town Center

Dampierre-en-Yvelines Castle

Côte des 17 Tournants

Magny-les-Hameaux climb

The Château de la Barrerie in Villiers‑le‑Bâcle

Villiers-le-Bâcle Hill

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