What is the customs path?

The GR® 34, also known as the customs trail, runs for more than 2,000 kilometres along the coast of Brittany. It starts at Mont-Saint-Michel, in the Manche département, and stretches as far as Saint-Nazaire, in the Loire-Atlantique département. Initially, it meandered inland, but today it follows the coastline exclusively. The trail passes through a variety of landscapes, from the Bay of Mont-Saint-Michel to the Emerald Coast, via iconic sites such as Saint-Malo and Cancale. So you can look forward to a long walk along the customs path!

How many stages are there on the Customs Trail?

The sentier des douaniers or GR®34 is generally divided into around a hundred stages. These vary in length and difficulty, from 10 to 25 kilometres per day, depending on the section. But don’t worry: walkers can adapt their itinerary to suit their level of fitness and the time available! Some stages are easier and more accessible, while others have a greater positive difference in altitude and require good physical preparation.

Where can I find out more about the Customs Trail?

For more detailed information on the customs trail, contact us or visit the tourist office. You can also visit the Mon GR website, which specialises in hiking and roaming.

What level of ability do you need to set off on a hike along the customs trail?

The GR®34 is accessible to all, but some sections require a good level of preparation. Beginners can start with easy stages such as Lézardrieux to Sillon de Talbert, with flat, well-marked paths. Intermediate hikers will enjoy the more varied terrain between Tréguier and Plougrescant. The difficult sections, such as Ploumanac’h to Trégastel or Trédrez, require a good level of fitness because of the steep paths and the steep gradients. Good physical condition and the right equipment are essential if you are to enjoy the route to the full.

Can you cycle the customs trail?

Cycling is prohibited on the coastal path, which makes up most of the GR®34. However, there are cycle routes nearby, such as La Vélomaritime (EuroVelo 4), which allows you to cycle between Lézardrieux and Plestin-les-Grèves. The Vélomaritime mainly follows minor roads and includes sections of greenways.

What do I need to take with me on a hike along the customs path?

Make sure you check out the various water points on your route before you set off and plan your supplies accordingly. And don’t forget to bring comfortable walking shoes, suitable for hikes of this length. And don’t forget your camera to capture the magnificent landscapes of the Pink Granite Coast!

Where can you eat on the customs trail?

To eat, you can either prepare your picnic beforehand, or indulge in the flavours of Brittany by visiting one of the restaurants along the way. Hiking also gives you the freedom to choose where to eat!

On which beach can you take a break along the customs path?

If a few kilometres on foot wears out your shoes, enjoy a little break on one of the beaches of the Pink Granite Coast: 💦 Goas Lagorn beach (Lannion) : Its fine sand and beautiful waves will delight surfers and body-boarders as well as families. 💦 La Grève Blanche beach (Trégastel) : A lovely spot for a break, with fine sand and clear waters. Perfect for a swim after a hike! 💦 Port-Blanc beach (Penvénan): A picturesque little beach with turquoise waters and sculpted rocks. 💦 Trestraou beach (Perros-Guirec): A large beach of fine sand with a superb view of the islands and Ploumanac’h lighthouse.

The customs pathon the move on the Pink Granite Coast

GR®34 – The customs path on the Pink Granite Coast

Fancy combining hiking with exceptional scenery? Grab your rucksack and slip on your hiking boots as we take you along the customs path on the Pink Granite Coast!
Follow the GR®34 and this famous path for a 100% nature break, and conquer the many panoramic views and exceptional natural sites that Brittany has to offer. From the Lézardrieux peninsula to Plestin-les-Grèves, via Tréguier, the Gouffre de Plougrescant, Ploumanac’h, Trébeurden and Lannion, this hike has a taste of freedom… Let’s get moving!

Practical information

Duration

10 days

Distance

192 km

Location

Lézardrieux Bridge

Download

The GPX trace

Focus on

The must-haves

From Lézardrieux to Tréguier | 2 days

Heading for the Lézardrieux peninsula

Once you’ve laced up your hiking boots, leave Lézardrieux and follow the GR®34 along the coast. Head north to the charming little hamlet of Kermouster, which offers a breathtaking view of the mouth of the Trieux. To the very north of the peninsula is the Sillon de Talbert nature reserve, a 3km stretch of sand and pebbles jutting out into the sea. An exceptional landscape awaits you! You can enjoy panoramic views of the sea and the coast, with the island of Bréhat in the background, and observe the marine flora and fauna typical of this coastal environment.

Discover a wild, jagged landscape with vast shores overlooked by the ancient Créac’h Maout semaphore and its magnificent panorama of the sea. The coastal path then takes you along the Jaudy estuary towards the town of Tréguier, passing close to the remarkable Kerdalo gardens. The perfect natural setting for a bucolic break!

For more information on this walk:

🥾 Distance: Approximately 42 km over 2 days
⛰ Difference in altitude: Moderate, with a few moderate climbs and descents.
👀 Difficulty: Moderate | coastal terrain with some sandy and rocky sections
🕦 Duration: 5h to 6h walk per day on average

From Tréguier to Perros-Guirec | 2 days

Walking on the Côte d'Ajoncs

Before leaving Tréguier, visit the magnificent Cathédrale Saint-Tugdual, a jewel of Gothic architecture in Brittany. The route takes you to the small oyster-farming port of La Roche Jaune, then on to Plougrescant with its parade of small coves, harbours, wild moorland and rocky coastlines sculpted by the elements. Resume your walk before stopping to visit the famous Gouffre de Plougrescant, a spectacular rock formation where the sea plunges into a deep crevasse. And yes, nature can be surprising in Brittany! You continue your walk through the picturesque villages of Buguélès and Port-Blanc, before reaching the magnificent beach at Trestel. Take off your hiking boots, you’ve earned it.

All the info on this hike :

🥾 Distance: Approximately 44 km over 2 days
⛰ Difference in altitude: Moderate with a few climbs, particularly around Plouguiel and Buguélès.
👀 Difficulty: Moderate | sometimes steep path, rocky sections
🕦 Duration: 6h to 7h walk on average

From Perros-Guirec to Lannion | 4 days

In the heart of the Pink Granite Coast

Follow the customs path to Ploumanac’h! Here, you can admire the often surprising shapes of the rocks sculpted by erosion. Continuing along the GR®34, you’ll come to Trégastel, where you’ll find Ile Renote, a small island surrounded by superb pink rocks, offering a breathtaking view of the coast and the Seven Islands archipelago. Passing through the Landrellec peninsula and Ile Grande, you then reach Trébeurden, where you will find impressive pink granite formations such as Castel, a granite chaos facing Ile Milliau. As you pass the Pointe de Bihit and its steep path, the view opens out over the Bay of Lannion and the mouth of the Léguer.

For more information on this hike:

🥾 Distance: Approximately 71 km spread over 4 days
⛰ Difference in altitude: Significant, with many hilly stretches between Ploumanac’h, Trégastel and Trébeurden.
👀 Difficulty: Difficult | substantial difference in altitude, steep path in places
🕦 Duration: 6h to 8h walk on average

©
Venelle des 3 avocats Lannion
|
Thibault Poriel

From Lannion to Plestin-les-Grèves | 2 days

Towards the Lieue de Grève from estuary to cliffs

Passing the pointe de Beg Léguer, you enter the Léguer estuary, which leads to the historic town of Lannion. Heading back towards the sea, you’ll discover the mysterious site of Le Yaudet, which dominates the river mouth from the top of its rocky promontory. You will then pass the Pointe du Dourven and the Port de Locquémeau before heading for the cliffs of Trédrez, following the GR®34, a vast and particularly wild rocky coastline that still offers superb panoramic views. The scenery takes you as far as the Lieue de Grève, a foreshore more than 4 km long dominated by the 84-metre-high Grand Rocher. Your journey ends at the Pointe de l’Armorique, with its charming beaches and small coves, where you can take a refreshing break at the archaeological site of the Thermes du Hogolo, vestiges of Romanised Armorica.

All the info on this walk :

🥾 Distance: Approximately 37 km over 2 days
⛰ Difference in altitude: Moderate – climbs to Yaudet and the cliffs of Trédrez.
👀 Difficulty: Moderate – coastal sections sometimes windy, varied terrain
🕦 Duration: 5h to 6h walk on average

Checklist of things to see and do

on the customs path on the Pink Granite Coast

Did you know? The customs path offers you the chance to discover a multitude of natural and historical sites along your walk! Here are just a few of the points of interest not to be missed on your walk along the Pink Granite Coast:

✅ Coastaérès castle and Ploumanac’h
✅ Le Sillon de Talbert
✅ The Trieux estuary
✅ The Port-blanc archipelago
✅ Plougrescant chasm
✅ Tréguier Cathedral
✅ The Renote peninsula
✅ La Pointe de Bihit
✅ Le Yaudet
✅ Le Grand Rocher

©
Balade en famille face à l'îlot de Costaérès
|
Alexandre Lamoureux

©
Sunset Pors Scaff Simon Pouyet.jpg
|
Simon Pouyet

©
Visite Guidee De Treguier Yann Josselin 24
|
Yann Josselin

©
La Pointe de Bihit in Trébeurden
|
Emmanuel Berthier

The customs path on the Pink Granite Coast

Frequently asked questions

What is the customs path?
The GR® 34, also known as the customs trail, runs for more than 2,000 kilometres along the coast of Brittany. It starts at Mont-Saint-Michel, in the Manche département, and stretches as far as Saint-Nazaire, in the Loire-Atlantique département. Initially, it meandered inland, but today it follows the coastline exclusively. The trail passes through a variety of landscapes, from the Bay of Mont-Saint-Michel to the Emerald Coast, via iconic sites such as Saint-Malo and Cancale. So you can look forward to a long walk along the customs path!
How many stages are there on the Customs Trail?
The sentier des douaniers or GR®34 is generally divided into around a hundred stages. These vary in length and difficulty, from 10 to 25 kilometres per day, depending on the section. But don’t worry: walkers can adapt their itinerary to suit their level of fitness and the time available! Some stages are easier and more accessible, while others have a greater positive difference in altitude and require good physical preparation.
Where can I find out more about the Customs Trail?
What level of ability do you need to set off on a hike along the customs trail?
The GR®34 is accessible to all, but some sections require a good level of preparation. Beginners can start with easy stages such as Lézardrieux to Sillon de Talbert, with flat, well-marked paths. Intermediate hikers will enjoy the more varied terrain between Tréguier and Plougrescant. The difficult sections, such as Ploumanac’h to Trégastel or Trédrez, require a good level of fitness because of the steep paths and the steep gradients. Good physical condition and the right equipment are essential if you are to enjoy the route to the full.
Can you cycle the customs trail?
What do I need to take with me on a hike along the customs path?
Where can you eat on the customs trail?
On which beach can you take a break along the customs path?
If a few kilometres on foot wears out your shoes, enjoy a little break on one of the beaches of the Pink Granite Coast:
💦 Goas Lagorn beach (Lannion): Its fine sand and beautiful waves will delight surfers and body-boarders as well as families.
💦 La Grève Blanche beach (Trégastel): A lovely spot for a break, with fine sand and clear waters. Perfect for a swim after a hike!
💦 Port-Blanc beach (Penvénan): A picturesque little beach with turquoise waters and sculpted rocks.
💦 Trestraou beach (Perros-Guirec): A large beach of fine sand with a superb view of the islands and Ploumanac’h lighthouse.