Explore County Mayo: castles, holy wells, abbeys and ancient sites
Maigh Eo · Connacht. 3,028 heritage sites, 119 trails, 24 bathing waters and 31 upcoming events.
Photo: Rockfleet Castle · Mikeoem · CC BY-SA 4.0
Map of County Mayo
Switch layers on and off to combine monuments with walks, beaches, forests and events.
Folklore and traditions recorded in County Mayo (19 sites).
Castles and forts
Castles 148
Visitor site National MonumentRockfleet Castle
Castle - tower house · Rockfleet
Visitor sitePartry House
Castle - unclassified · Cloonlagheen
Visitor siteThe Monk's Fishing House
Castle - unclassified · Cong South
Visitor siteWestport Estate
Castle - unclassified · Westport Demesne (Murrisk By.)
Ringforts 1,982
Barnacahoge Cashel
Ringfort - cashel · Barnacahoge
National MonumentRathfran Ringfort
Ringfort - rath · Rathfran
Hillforts 1
On the map only (no named sites yet).
Promontory Forts 88
On the map only (no named sites yet).
Prehistoric monuments
Megalithic Tombs 228
National MonumentDolmen of the Four Maols
Megalithic tomb - unclassified · Ballina (Tirawley By.)
National MonumentRathfranpark Wedge Tomb
Megalithic tomb - wedge tomb · Rathfranpark
National MonumentCarrowcastle Wedge Tomb
Megalithic tomb - wedge tomb · Carrowcastle (Gallen By., Kilgarvan Par.)
Carrowcrom Wedge Tomb
Megalithic tomb - wedge tomb · Carrowcrom
All megalithic tombs in County Mayo
Stone Circles 20
All stone circles in County Mayo
Standing Stones 139
On the map only (no named sites yet).
All standing stones in County Mayo
Ogham Stones 12
Religious heritage
Holy Wells 133
Kilcummin Well
Ritual site - holy well · Ballinlena
St Derivla's Well
Ritual site - holy well · Inis Gé Theas
St. Bridget's Wells
Ritual site - holy well · Kildarra
Toberarraght
Ritual site - holy well · Lurga Lower
Ancient Churches 202
National MonumentBurriscarra Abbey
Church · Castlecarra
Kilcummin Church
Church · Ballinlena
National MonumentSt. Dairbhile's Church
Church · An Fál Mór
National MonumentInishglora Island Early Medieval Ecclesiastical Site
Church · Inis Gluaire
All ancient churches in County Mayo
Abbeys & Friaries 37
Visitor site National MonumentBurrishoole Friary
Religious house - Dominican friars · Carrowkeel (Burrishoole By., Burrishoole Par.)
Visitor site National MonumentMurrisk Friary
Religious house - Augustinian friars · Carrowkeel (Murrisk By.)
Aghagower Church
Religious house - unclassified · Aghagower
Ballinrobe Priory
Religious house - Augustinian friars · Friarsquarter West
All abbeys & friaries in County Mayo
Monastic Sites 25
All monastic sites in County Mayo
Round Towers 5
National MonumentAughagower Round Tower
Round tower · Aghagower
National MonumentBalla Round Tower
Round tower · Balla
National MonumentKillala Round Tower
Round tower · Townplots West
National MonumentMeelick Round Tower
Round tower · Meelick (Gallen By.)
All round towers in County Mayo
High Crosses 1
On the map only (no named sites yet).
Caves and waterfalls
Caves 6
Waterfalls 1
Get outdoors
Trails 119
- Western Way - MayoLong Distance Waymarked Way · 130.5 km
- Belmullet Red RouteRoad Cycling Trail · 72.6 km
- Croagh Patrick Heritage TrailLong Distance Waymarked Way · 60.5 km
- Belmullet Yellow RouteRoad Cycling Trail · 49.3 km
- Great Western GreenwayGreenway · 44.9 km
- Great Western GreenwayGreenway · 44.9 km
- Achill Cycle Hub - Loop 1Road Cycling Trail · 43.2 km
- Belmullet Blue LoopRoad Cycling Trail · 37.9 km
+ 111 more on the map.
Beaches 24
- Bertra Beach, MurriskExcellent Quality (2025) · Blue Flag, Lifeguard (season), Toilets
- Carrowmore Beach, LouisburghSufficient Quality (2025) · Lifeguard (season), Toilets, Parking
- Dooega Beach, Achill IslandExcellent Quality (2025) · Blue Flag, Toilets, Parking
- Dugort Beach, Achill IslandExcellent Quality (2025) · Blue Flag, Lifeguard (season), Toilets
- Elly Bay, BelmulletExcellent Quality (2025) · Blue Flag, Toilets, Parking
- Golden Strand, Achill IslandExcellent Quality (2025) · Green Coast, Toilets, Parking
- Keel Beach, Achill IslandExcellent Quality (2025) · Blue Flag, Lifeguard (season), Toilets
- Keem Beach, Achill IslandExcellent Quality (2025) · Blue Flag, Lifeguard (season), Toilets
+ 16 more on the map.
Nature reserves 4
- Knockmoyle Sheskin Nature Reserve
- Knockmoyle Sheskin Nature Reserve
- Oldhead Wood Nature Reserve
- Owenboy Nature Reserve
History and things to do
Walled towns 1
- Burris
Excavations 38
- E1341 Cloonaghboy I, County MayoExcavation report (TII)
- E1507 Ballyglass West, County MayoExcavation report (TII)
- E3359 Sonnagh X + XII, County MayoExcavation report (TII)
- E3357 Cloonaghboy IV -V, County MayoExcavation report (TII)
- E3353 Fauleens I-II, County MayoExcavation report (TII)
- E3333 Cloonaghboy II, County MayoExcavation report (TII)
+ 32 more on the map.
Attractions 109
- Aasleagh FallsNature and Wildlife
- Achill Heritage CentreMuseums and Attraction
- Achill Isle WalksNature and Wildlife
- Achill Sea SafariNature and Wildlife
- Achill SeascapeNature and Wildlife
- Alchemy ToursNature and Wildlife
+ 101 more on the map.
Stay and what's on
Historic stays 2
- Delphi Lodge
- Enniscoe House
Events 31
- The Pale Blue Dot - Voyager Golden Record Reimagined2026-11-05 · The Linenhall
- Westport Sea 2 Summit Adventure Race2026-11-07 · F28 NX84
- Circus Science By The Sea Festival2026-11-13 · Achill Island
- Circus Science By The Sea Festival2026-11-14 · Achill Island
- Winter Wonderland at Westport Estate2026-11-14 · Westport Estate
- Circus Science By The Sea Festival2026-11-15 · Achill Island
- Winter Wonderland at Westport Estate2026-11-15 · Westport Estate
- Winter Wonderland at Westport Estate2026-11-21 · Westport Estate
+ 23 more on the map.
Places to stay
140 properties in County Mayo are on the Fáilte Ireland register of approved accommodation.
Neighbouring counties
Sources: Archaeological Survey of Ireland (NMS); Sport Ireland National Trails Register; EPA bathing waters; Coillte; NPWS; Heritage Council; Fáilte Ireland attractions, events and accommodation; TII; all CC BY 4.0, consulted 5 November 2026. Events listed for the next 120 days.