Routes

Planner

Features

Updates

App

Get the App

Ponts-Neufs Viaduct – Great Blue Lake loop from Yffiniac

Ponts-Neufs Viaduct – Great Blue Lake loop from Yffiniac

Moderate

4.7

(7)

164

riders

Ponts-Neufs Viaduct – Great Blue Lake loop from Yffiniac

04:25

65.2km

710m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: June 18, 2026

Tips

Includes a segment in which cycling is not permitted

After 33.4 km for 232 m

Waypoints

Start point

Train Station

Get Directions

7.62 km

Ponts-Neufs Viaduct

Highlight • Viewpoint

Avoid the busy road below, and take this superb viaduct instead!

fr.wikipedia.org/wiki/Viaduc_des_Ponts-Neufs

Translated by Google •

Tip by

10.3 km

Gouessant Dam in Morieux

Highlight • Structure

worth dwelling on

Translated by Google •

Tip by

10.3 km

The Pont-Rolland dam and reservoir, located on the Gouessant estuary, in the municipalities of Morieux and Hillion, were built in the 1930s and were the subject of a concession to EDF for the production of hydroelectricity until 2010.

Translated by Google •

Tip by

15.9 km

View of Saint-Brieuc Bay

Highlight • Other

Superb view of the bay.

Translated by Google •

Tip by

20.4 km

Dahouët Harbour

Highlight • Settlement

Tidal port, natural haven fitted out in the 19th century to accommodate large-scale fishing vessels. Notre-Dame-de-la-Garde oratory at the entrance to the port. Former Salines basin transformed into a floating basin for yachting. Alignment of shipowners' houses, traders, numerous cafes. Exhibition of the Great Fishing epic: Newfoundland and Iceland (Heritage Workshop)

Translated by Google •

Tip by

20.6 km

Port Dahouët

Highlight • Other

A quiet little port area with a friendly tabac/bar

Tip by

30.2 km

Caroual Viaduct

Highlight • Bridge

Located on the edge of the seafront in Caroual, the Caroual viaduct is a work of art on the departmental railway line linking Saint-Brieuc to Saint-Briac, built between 1913 and 1916 by the engineer Briochin des Ponts et Roads, Harel de la Noë.
With a total length of 109.25 m, maximum height 17.50 m, useful width 4.22 m, it includes a central arch with a span of 45 m and is made of local pink sandstone masonry and reinforced concrete.
The “little train of the Côtes du Nord” will bring generations of summer visitors to Erquy, from July 11, 1922 to December 31, 1948, the date of its final shutdown.
The Caroual Viaduct was transferred to the municipality by administrative act of September 18, 1959.

Translated by Google •

Tip by

33.5 km

Great Blue Lake

Highlight • Lake

The larger of two lakes formed from a disused quarry.

Translated by Google •

Tip by

37.6 km

Plage de Caroual

Beach

65.2 km

End point

Train Station

Way Types & Surfaces

Way Types

36.8 km

12.3 km

8.75 km

5.25 km

1.97 km

192 m

Surfaces

30.6 km

25.8 km

7.42 km

903 m

320 m

238 m

Elevation

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

Highest point (100 m)

Lowest point (0 m)

Weather

Tuesday 28 July

30°C

16°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Moderate

4.3

Arguenon and Hunaudaye Loop from Lamballe

02:42h

61.5km

450m

Hard

La Baie de Hillion — loop from Saint-Brieuc

04:12h

94.2km

900m

Moderate

4.4

343

Cap Fréhel Coastal Path – Cap Fréhel Lighthouse loop from Erquy

01:54h

40.9km

420m

Moderate

4.5

319

Cap Fréhel Coastal Path – Cap Fréhel Lighthouse loop from Erquy

02:35h

55.2km

570m

Moderate

4.9

259

View over Bréhec – View of Pointe de Minard loop from Binic-Étables-sur-Mer

03:01h

65.2km

710m

Moderate

4.0

241

Dahouët Harbour – Ponts-Neufs Viaduct loop from Yffiniac

02:25h

50.9km

500m

Moderate

4.3

186

Dahouët Harbour – Ponts-Neufs Viaduct loop from Yffiniac

02:57h

65.4km

570m

Moderate

4.7

164

Ponts-Neufs Viaduct – Great Blue Lake loop from Yffiniac

04:24h

65.2km

710m

Moderate

5.0

121

Dahouët Harbour – Baie de Hillion loop from Pléneuf-Val-André

02:47h

59.2km

630m

Moderate

4.1

120

Dahouët Harbour – Ponts-Neufs Viaduct loop from Les Hôpitaux

02:36h

58.1km

540m

Moderate

4.3

110

Saint-Brieuc - Street art – Gouec Valley loop from Saint-Brieuc

02:17h

48.5km

500m

Moderate

4.7

232

Cap Fréhel Coast – Cap Fréhel Lighthouse loop from Pléneuf-Val-André

02:46h

59.1km

630m

Ponts-Neufs Viaduct – Great Blue Lake loop from Yffiniac

Ponts-Neufs Viaduct

Gouessant Dam in Morieux

Pont Rolland

View of Saint-Brieuc Bay

Dahouët Harbour

Port Dahouët

Caroual Viaduct

Great Blue Lake

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️