4.6
(69)
1,089
runners
20
runs
Jogging around Tréhorenteuc offers an immersive experience within the legendary Brocéliande forest, characterized by its diverse natural features. The region features varied terrain, including undergrowth paths, moors, and hills, particularly within the Val sans Retour. This area is known for its distinctive red earth and offers ascents to promontories with rewarding views. The broader forest environment includes dry and wet moors, peaceful woodlands, and serene countryside, providing a range of running surfaces.
Last updated: June 24, 2026
17
runners
16.6km
02:06
290m
290m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
14
runners
8.35km
01:04
160m
160m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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5.0
(1)
8
runners
39.3km
04:40
480m
480m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(10)
7
runners
15.1km
01:51
240m
240m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5
runners
29.7km
03:35
460m
460m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Very beautiful castle, the crows that prowl around it make it look... strange.
0
0
Outside of peak hours, it is very peaceful.
1
0
In the morning with the birds singing...it's magical
0
0
Not a fantastic site, but a pleasant area and hike.
0
0
enriching visit and you will be able to sit on the seat of Merlin the magician
2
0
The interior is beautiful and allows for a break during the hike
1
0
There are over 20 running routes in the Tréhorenteuc area, offering diverse experiences within the legendary Brocéliande forest. These trails range from moderate to challenging, catering to various fitness levels.
The jogging trails in Tréhorenteuc feature varied terrain, including undergrowth paths, moors, and hills, particularly within the mystical Val sans Retour. You'll encounter the distinctive red earth of the region, peaceful woodlands, and serene countryside, providing a range of running surfaces.
Yes, Tréhorenteuc offers several challenging running routes. For instance, the The Dragon's Ridge – The Seat of Merlin loop from Tréhorenteuc is a difficult 21.7 km trail with significant elevation changes, perfect for those seeking a demanding run through the mythical landscape.
Many running routes pass by legendary sites. You can discover the Golden Tree, a poignant art installation, or the tranquil Fairies' Mirror Pond. Other notable spots include Merlin's Seat, an eroded rock overlooking the Val sans Retour, and the ancient Guillotin Oak in the broader Paimpont Forest.
Yes, many of the running routes around Tréhorenteuc are circular, allowing you to start and finish at the same point. An example is the challenging The Dragon's Ridge – The Seat of Merlin loop from Tréhorenteuc, which offers a full circuit through the area's legendary sites.
The running routes in Tréhorenteuc are highly rated by the komoot community, with an average score of 4.5 stars from over 50 reviews. Runners often praise the immersive experience within the legendary Brocéliande forest, the diverse natural features, and the unique blend of natural beauty with Arthurian legends.
Absolutely. The Val sans Retour, in particular, offers ascents to promontories with rewarding views over the moors and hills. Routes like the Val Sans Retour – Fairies' Mirror Pond loop from Tréhorenteuc provide opportunities to take in the mystical atmosphere and scenic landscapes.
Tréhorenteuc offers a unique experience year-round. While the vibrant colors of spring and autumn enhance the forest's beauty, the region's diverse terrain and mythical atmosphere can be enjoyed in any season. Be prepared for varying weather conditions, as the mystical ambiance can shift with the seasons.
Yes, several routes incorporate beautiful water features. The Fairies' Mirror Pond (Miroir aux Fées) is a tranquil lake whose still surface beautifully reflects the surrounding nature, and it's a common highlight on many running loops in the area.
The Val sans Retour (Valley of No Return) is a remarkable natural site enclosed by moors and hills, steeped in the legend of the fairy Morgane. It's significant for runners due to its varied terrain, including undergrowth paths and rocky outcrops, and its unique red earth. It offers both a physical challenge and an immersive experience into the heart of Brocéliande's legends.
For those looking for longer runs, the area provides several options. The Val Sans Retour – Fairies' Mirror Pond loop from Tréhorenteuc is a substantial 24 km trail, offering an extended journey through the region's mythical landscapes and diverse environments.
Tréhorenteuc is rich in Arthurian legends and cultural heritage. For more details on the village and its unique connection to the Brocéliande forest, you can visit the official tourism website: tourismebretagne.com.


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