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France
Brittany
Rennes
Bruz

The Three Bridges Trail

Moderate

4.3

(77)

398

hikers

The Three Bridges Trail

02:08

7.89km

100m

Hiking

Hike the moderate 4.9-mile Boël mill loop, featuring river views, woodlands, and the historic Boël Mill, taking about 2 hours.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

6.31 km

Boël Mill

Highlight • Monument

Le Boël is one of the emblematic sites of the Vilaine valley.

Essential place for walks or bike rides (mountain biking, road or gravel, there is something for everyone) and …

Translated by Google •

Tip by

2

7.42 km

View of the Boël Mill

Highlight • Other

Visiting the mill is definitely a highlight, but I highly recommend hiking to the top of the hill to get a great view of the mill from the top. Simply fantastic!

Translated by Google •

Tip by

B

7.89 km

End point

Parking

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Way Types & Surfaces

Way Types

3.24 km

2.53 km

1.52 km

437 m

135 m

Surfaces

2.45 km

2.39 km

2.18 km

413 m

411 m

< 100 m

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Elevation

Elevation

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

Highest point (90 m)

Lowest point (20 m)

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Weather

Powered by Foreca

Tuesday 7 July

36°C

14°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

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Frequently Asked Questions

What is the typical duration for completing the Boël mill loop?

The Boël mill loop is approximately 8 kilometers (5 miles) long. Most hikers complete it in about 2 hours and 35 minutes, depending on their pace and how often they stop to enjoy the views.

What is the terrain like on this trail?

The trail features varied terrain. You will start at the top of cliffs, cross shady woodlands, and return along a towpath. There are also short climbs, some of which can be quite steep. Good hiking boots and walking sticks are recommended due to these technical sections.

What can I see along the route?

This loop offers magnificent panoramas of the Vilaine river and the historic Boël Mill from various viewpoints along the cliffs. You'll also pass through scenic shaded woodlands. Don't miss the specific View of the Boël Mill highlight.

Does this trail connect with other paths?

Yes, the route incorporates a section of the GR®39 path. It also overlaps with other official trails such as Les trois ponts, Du Mont-Saint-Michel à La Grande Brière - partie 4, and Véloroute de la Rance et de la Vilaine for significant portions.

Is the Boël mill loop dog-friendly?

While the trail is generally accessible, it's always best to keep dogs on a leash, especially in areas with varied terrain, wildlife, or near other hikers. Please ensure you clean up after your pet.

Are there any permits or entrance fees required for the Boël Natural Site?

No, there are no specific permits or entrance fees required to hike the Boël mill loop within the Boël Natural Site. It is freely accessible to the public.

Where can I park for the Boël mill loop?

The trail is a loop and starts and ends at the same location, making it convenient for parking. Specific parking areas are usually available near the trailhead in Guichen, but it's advisable to check local signage upon arrival.

Are there facilities or places to eat near the trail?

Yes, there is a bar/restaurant located directly on the Boël site, offering a convenient spot for refreshments before or after your hike.

What is the best time of year to visit the Boël mill loop?

The trail can be enjoyed year-round. However, spring and autumn offer pleasant temperatures and beautiful scenery with blooming flora or vibrant fall colors. Summer is also good, with the shaded woodlands providing relief from the sun.

Is the Boël mill loop suitable for families with children?

The trail is rated as 'moderate' and includes some short, steep climbs and varied terrain. While suitable for most hikers, families with very young children or those unaccustomed to hiking might find certain sections challenging. Consider the fitness level of your group.

What should I wear or bring for this hike?

Given the varied and sometimes steep terrain, good hiking boots are highly recommended for ankle support and grip. Walking sticks can also be beneficial for stability on technical sections. Bring water, snacks, and appropriate clothing for the weather conditions.

Nearby routes

Moderate

4.3

398

The Three Bridges Trail

02:08h

7.89km

100m

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