Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Discover
Places to see

Castles

Ireland
Galway

O'Brien's Castle (Dún Formna)

Discover
Places to see

Castles

Ireland
Galway

O'Brien's Castle (Dún Formna)

Highlight • Castle

O'Brien's Castle (Dún Formna)

Recommended for

Hiking

Cycling

by 27 explorers

Save

Share

  • More

  • Add komoot as a preferred source in your Google results

    Add now

    Loading

    Location: Galway, Ireland

    Save

    Share

  • More

  • Take Me There

    Tips

    November 4, 2022

    Hiking

    Wikipedia (O'Brien's Castle (Inisheer) (Irish: Caisleán Uí Bhriain), 2022-11-04):
    en.m.wikipedia.org/wiki/O'Brien's_Castle_(Inisheer)
    de.m.wikipedia.org/wiki/Dún_Formna
    “… A ringfort once stood on the site, named Dún Formna ... and dated to between the 5th century BC and 1st century AD. …”Wikipedia (List of national monuments in County Galway, 2024-08-09):
    en.m.wikipedia.org/wiki/List_of_national_monuments_in_County_Galway
    “41.07 … O'Brien's Castle (Great Fort, Furmina Castle) … Cashel”

    July 31, 2024

    Cycling

    Wikipedia (O'Brien's Castle (Inisheer) (Irish: Caisleán Uí Bhriain), 2022-11-04):
    en.m.wikipedia.org/wiki/O'Brien's_Castle_(Inisheer)
    de.m.wikipedia.org/wiki/Dún_Formna
    “… A ringfort once stood on the site, named Dún Formna ... and dated to between the 5th century BC and 1st century AD. …”
    Wikipedia (List of national monuments in County Galway, 2024-08-09):
    en.m.wikipedia.org/wiki/List_of_national_monuments_in_County_Galway
    “41.07 … O'Brien's Castle (Great Fort, Furmina Castle) … Cashel”

    October 26, 2023

    Hiking

    A very old fortified house with a wall for additional protection. This is what we call a ring castle. This was probably already in the 5th century BC. Built in 200 BC and has long since been abandoned. There is still a lot to see. And the view from here is wonderful.
    Translated by

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

    Sign up for free

    Routes here

    Best routes to O'Brien's Castle (Dún Formna)

    4.8

    (13)

    70

    hikers

    1. MV Plassy Shipwreck – O'Brien's Castle (Dún Formna) loop from Inisheer

    8.61km

    02:17

    90m

    90m

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

    Navigate

    Send to Phone

    Moderate

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

    Easy

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

    Moderate

    Details

    Informations

    Elevation 50 m

    Weather

    Powered by Foreca

    Today

    Wednesday 4 February

    10°C

    7°C

    15 %

    Additional weather tips

    Max wind speed: 31.0 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: Galway, Ireland

    Other Popular Places to Check Out

    Memorial to Shipwrecked Sailors (An Chloch), Inis Oírr

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

    © komoot GmbH

    Privacy Policy