Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Discover
Places to see
France
Brittany
Saint-Brieuc
Erquy

Cannonball furnace

Highlight • Other

Cannonball furnace

Recommended for

Hiking

by 8 explorers

Save

Share

  • More

  • Add komoot as a preferred source in your Google results

    Add now

    Loading

    Location: Erquy, Saint-Brieuc, Brittany, France

    Save

    Share

  • More

  • Take Me There

    Tips

    October 22, 2025

    Hiking

    A cannonball furnace, or cannonball-reddening furnace, is a military heating device used from the 17th to the 19th centuries to heat cannonballs to red-hot temperature, used as projectiles for cannons fired against ships or wooden buildings.
    ville-erquy.com/culture-et-patrimoine/patrimoine/four-a-boulets
    Translated by

    In the know? Log-in to add a tip for other adventurers!

    Sign up for free

    Routes here

    Best Hikes to Cannonball furnace

    4.9

    (101)

    635

    hikers

    1. Guen Beach – Great Blue Lake loop from Sables-d'Or-les-Pins

    17.1km

    04:37

    220m

    220m

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Navigate

    Send to Phone

    Moderate

    4.9

    (66)

    438

    hikers

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Moderate

    4.9

    (18)

    180

    hikers

    Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

    Easy

    Details

    Informations

    Elevation 60 m

    Weather

    Powered by Foreca

    Friday 23 January

    9°C

    6°C

    36 %

    Additional weather tips

    Max wind speed: 18.0 km/h

    Most visited during

    January

    February

    March

    April

    May

    June

    July

    August

    September

    October

    November

    December

    Add komoot as a preferred source in your Google results

    Add now

    Loading

    Location: Erquy, Saint-Brieuc, Brittany, France

    Other Popular Places to Check Out

    Pointe des Quatre Vents (Cap d’Erquy)

    Explore
    RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepacking
    Download the app
    Follow Us on Socials

    © komoot GmbH

    Privacy Policy