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France
Ile-de-France
Fontainebleau

Grez-Sur-Loing

The best MTB trails around Grez-Sur-Loing

4.4

(359)

1,972

riders

100

rides

Mountain biking around Grez-Sur-Loing offers access to varied terrain, primarily within the extensive Fontainebleau Forest and along the tranquil Loing River. The region features a network of trails ranging from technical sections with rocks and roots to more rolling, family-friendly paths. Landscapes include dense forests, sandy areas, and unique sandstone formations, providing diverse riding experiences. The area's geology and river valleys contribute to a mix of moderate elevation gains and flatter riverside routes.

Best mountain bike trails around Grez-Sur-Loing

  • The…

Last updated: July 5, 2026

4.2

(9)

30

riders

#1.

View of the castle – Carrosse Rock loop from Bourron-Marlotte - Grez

37.7km

03:09

360m

360m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Tips from the Community

markitos
May 7, 2026, Aqueduc de la Vanne

So this is not an old railway line at all. It is an aqueduct that supplies the city of Paris with drinking water. It is the aqueduct de la Vanne! Edit: the title of the unmissable has been changed by Komoot, and it has got its real name back :)

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Peaceful, quiet, secure, rolling and relaxing decor

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A striking contrast in the quality of the road or the developments of the Briard Canal are painful to see compared to those of the Orléans Canal.

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Be careful, you have to carry your bike to cross the footbridge

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to pose

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Durand
February 23, 2025, Aqueduc de la Vanne

When concrete appears in the middle of nature!!

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Excellent view of the Castle. In the morning, the mist envelops the building like a blanket.

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A tower in the middle of the forest next to nice viewpoints.

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Frequently Asked Questions

How many mountain bike trails are available around Grez-sur-Loing?

There are over 100 mountain bike trails around Grez-sur-Loing, offering a wide range of options for different skill levels. The komoot community has explored these routes over 1700 times.

What kind of terrain can I expect on the mountain bike trails near Grez-sur-Loing?

The terrain is quite varied, primarily due to the proximity of the Fontainebleau Forest and the Loing River. You'll find technical sections with rocks, roots, berms, and even some steep chutes within the forest's unique sandstone landscapes. Along the Loing River, trails tend to be flatter and more rolling, often on paved or well-maintained paths, suitable for a more relaxed ride.

Are there family-friendly mountain bike trails in the Grez-sur-Loing area?

Yes, there are several family-friendly options. The paths along the Loing River and its canal offer easier, mostly flat surfaces, ideal for all skill levels. Within the Fontainebleau Forest, some trails are designed to be more rolling and less technical, providing a pleasant experience for families. For example, the easy rated route Panorama – Auberge de la Dame Jouanne loop from Grez-sur-Loing is a good option.

What are the difficulty levels of mountain bike trails around Grez-sur-Loing?

The trails range from easy to moderate. You'll find 46 easy routes, perfect for beginners or those seeking a relaxed ride, often along the riverbanks. There are also 55 moderate trails, which typically involve more varied terrain and can be found within the Fontainebleau Forest, offering a greater challenge. There are no difficult-rated trails in this specific selection.

What natural features or landmarks can I see along the mountain bike trails?

Many trails offer views of the tranquil Loing River and its canal. Within the Fontainebleau Forest, you'll encounter unique sandstone formations and dense forest landscapes. Notable natural highlights nearby include the Grotte du Serment, The Elephant rock formation, and the Béorlots Sand Dune. You might also pass by the charming medieval village of Grez-sur-Loing itself, with its old stone bridge.

Are there any circular mountain bike routes in Grez-sur-Loing?

Yes, many of the mountain bike trails around Grez-sur-Loing are designed as loops. For instance, the popular Old railroad track – View of the castle loop from Bourron-Marlotte - Grez is a moderate 37.9 km circular route. Another option is the Old Bridge of Moret-sur-Loing loop from Fontainebleau, which is 27.7 km long.

What do other mountain bikers enjoy most about riding in Grez-sur-Loing?

The area is highly rated by the komoot community, with an average score of 4.3 stars from over 270 reviews. Riders often praise the diverse terrain, from the technical sections in Fontainebleau Forest to the peaceful riverside paths, and the scenic beauty of the Loing River and the medieval villages.

Are there any historical sites or attractions near the mountain bike trails?

Absolutely. Grez-sur-Loing itself is a medieval village with preserved heritage, including the vestige of an ancient château, La Tour de Ganne. You can also find the Pont de Moret-sur-Loing, a historic bridge, and the Ruins of the Saint-Mathurin Basilica. The magnificent Fontainebleau Castle, a UNESCO World Heritage site, is also within reach.

What is the best time of year to go mountain biking in Grez-sur-Loing?

Grez-sur-Loing and the Fontainebleau Forest offer good riding conditions for much of the year. Spring and autumn generally provide pleasant temperatures and beautiful scenery, with vibrant foliage or blooming flowers. Summer can be warm, but the forest trails offer good shade. Winters are usually mild, but some trails might be muddy after rain.

Can I bring my dog on the mountain bike trails around Grez-sur-Loing?

Generally, dogs are permitted on trails in the Fontainebleau Forest and along the Loing River, but it's always recommended to keep them on a leash, especially in protected areas or when encountering other trail users. Be mindful of local regulations and wildlife, particularly during nesting seasons.

Where can I find parking for mountain biking in Grez-sur-Loing and the Fontainebleau Forest?

Parking is available in Grez-sur-Loing village itself, often near the river or village center. For trails within the Fontainebleau Forest, numerous designated parking areas and trailheads are scattered throughout the forest, providing access to various sections of the trail network. These are usually well-marked.

Are there places to eat or stay for mountain bikers in Grez-sur-Loing?

Grez-sur-Loing, being a charming medieval village, offers various options for food and accommodation. You'll find local cafes and restaurants to refuel after your ride. There are also guesthouses and small hotels in and around the village, catering to visitors exploring the region and its outdoor activities.

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