Lighthouse
Triagoz Lighthouse
Pleumeur-Bodou · Côtes-d’Armor
A square pink granite tower on the Guen-Bras reef, first lit in 1864, with two flashes every 6 seconds, listed as a historic monument.
- Suggested time
- 30 min to 1 h from the coast, longer on a boat trip.
- Type of place
- Offshore lighthouse, listed historic monument
- Atmosphere
- Mineral, heritage-rich, isolated and maritime.
- Getting there
- An offshore lighthouse north of the bay of Lannion. You can see it from several points on the Pink Granite Coast or from a boat.
Who this place suits
- With family
- 7/10
- As a couple
- 8/10
- With friends
- 8/10
- Solo
- 9/10
- With a dog
- 6/10
- Reduced mobility
- 3/10
These scores are calculated from what the page records: official rating, facilities, difficulty, duration and location. They are a guide, not a substitute for contacting the venue, especially about accessibility.
About
The Triagoz lighthouse seems to extend the geology of the Pink Granite Coast out to sea. Built on the Guen-Bras reef, south-east of the Triagoz plateau, it is made of the pink granite of Ploumanac’h. Its square shape, corner stones and corbelled gallery make it easy to recognise when you can see it in good conditions. The decision to build several lights to make the steamship route safer was taken by a decree of Napoleon III on 12 May 1860. Work began in 1861 under the engineer Pelaud. The site was so difficult that the top of the rock was levelled to set up a shelter for the workers and lifting gear. The lighthouse was first lit on 15 November 1864. It is now 29 metres high in total, and its light gives two grouped flashes every six seconds. Its range reaches 14.5 miles in the white sector and 11 miles in the red sector. Electrified in 1981 and automated in 1984, it no longer has keepers. Registered in 2015 and then listed as a historic monument in 2017, it cannot be visited. The old lantern dome and its optics are kept in Lézardrieux.
What you will see
- Status: not open to visitors.
- Height: 29 m.
- Light: two grouped flashes every 6 seconds.
- Range: 14.5 miles white, 11 miles red.
- Lamp: 180 W.
- 12 May 1860: an imperial decree orders lights for the steamship route.
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- 1861: work begins.
- The top of Guen-Bras is levelled to create a work base.
- 15 November 1864: the lighthouse is first lit.
- 1981: electrification.
- April 1984: automation and the end of keepers.
- 31 December 2015: registered as a historic monument.
- 20 April 2017: listed as a historic monument.
- With children: combine it with a walk on the Pink Granite Coast or a boat trip.
Practical information
- Pets
- According to the local rules for paths and natural areas
- Accessibility
- No access to the lighthouse; some coastal viewpoints are easier to reach than the rocky paths
- Safety
- Do not look for viewpoints on rocks exposed to the swell; any approach by sea needs suitable conditions and seamanship
- Best time
- Clear weather, calm sea and good visibility
- Photography
- A telephoto lens is recommended from the coast; the pink granite shines in warm light, like the rocks of Ploumanac’h
- Nearby
- Ploumanac’h, Perros-Guirec, Trégastel, the Sept-Îles archipelago, Lézardrieux
Tips on the spot
- Check the visit status on the day before you travel, and do not confuse access to the site, the foot of the lighthouse and the inside of the tower.
- For a lighthouse open to visitors, check the time of the last climb, not just the closing time.
- For a lighthouse at sea, only watch it from a boat run by a professional or from a safe viewpoint on land.
- Bring a windproof layer, even in summer; stairs and galleries can be slippery with rain or spray.
- With children, check the number of steps and any minimum age; with vertigo, the climb to the gallery is not for everyone.
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- Working lighthouses are maritime safety equipment: respect all restricted technical areas.
- For photos, use a wide angle at the foot of the lighthouse and a telephoto lens for lighthouses seen from a distance.
- On an island, check the last boat back before starting the visit.
- On cliffs, stay behind the barriers and on the paths; keep dogs on a lead in nature reserves.
- Visits can be cancelled at the last minute for safety reasons.
- Bring binoculars or a telephoto lens.
- See the old lantern dome and optics in Lézardrieux.
Frequently asked questions
Can I visit the Triagoz lighthouse?
No. It is an offshore lighthouse that you can see from the Pink Granite Coast or from a boat.
How much time should I allow?
30 min to 1 h from the coast, longer on a boat trip.
Why is it pink?
It is built from the pink granite of Ploumanac’h.
When was it first lit?
On 15 November 1864.
Is it a historic monument?
Yes, it was listed as a historic monument in 2017.
Is there any particular risk?
Do not look for viewpoints on rocks exposed to the swell.
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Traveller reviews
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Photograph: Guy Marty · CC BY-SA 1.0 · Wikimedia Commons