Explore County Offaly: castles, holy wells, abbeys and ancient sites
Uíbh Fhailí · Leinster. 639 heritage sites, 31 trails, 0 bathing waters and 1 upcoming events.
Photo: Clonmacnoise Castle · Javier Mediavilla Ezquibela · CC BY 2.5
Map of County Offaly
Switch layers on and off to combine monuments with walks, beaches, forests and events.
Folklore and traditions recorded in County Offaly (14 sites).
Castles and forts
Castles 154
Visitor site Leap Castle
Castle - tower house · Leap
Visitor siteBirr Castle Demesne & Historic Science Centre
Castle - unclassified · Townparks (Ballybrit By.)
Blundell Castle
Castle - tower house · Edenderry
Cloghan Castle
Castle - tower house · Cloghan Demesne
Ringforts 248
All ringforts in County Offaly
Hillforts 2
On the map only (no named sites yet).
Prehistoric monuments
Megalithic Tombs 2
On the map only (no named sites yet).
Standing Stones 22
On the map only (no named sites yet).
All standing stones in County Offaly
Ogham Stones 1
On the map only (no named sites yet).
Religious heritage
Holy Wells 59
Saint Manchan's Well
Ritual site - holy well · Lemanaghan
Anne's Well
Ritual site - holy well · Ballyheashill
Bridget's Well
Ritual site - holy well · Clonlyon Glebe
Lady's Well
Ritual site - holy well · Toberleheen
All holy wells in County Offaly
Ancient Churches 99
National MonumentClonmacnoise Early Medieval Ecclesiastical Site
Church · Clonmacnoise
Gallen Monastery
Church · Gallen
National MonumentNuns' Chapel
Church · Clonmacnoise
National MonumentSt Carthach's Church
Church · Rahan Demesne
All ancient churches in County Offaly
Abbeys & Friaries 10
National MonumentDurrow Abbey
Religious house - Augustinian canons · Durrow Demesne
National MonumentGallen Priory
Religious house - Augustinian canons · Gallen
All abbeys & friaries in County Offaly
Monastic Sites 25
All monastic sites in County Offaly
Round Towers 2
National MonumentChurchland Round Tower
Round tower · Churchland
National MonumentO'Rourke's Tower
Round tower · Clonmacnoise
All round towers in County Offaly
High Crosses 15
Get outdoors
Trails 31
- Slieve Bloom WayLong Distance Waymarked Way · 73.7 km
- Birr Cycle Hub Loop 3Road Cycling Trail · 73.2 km
- Birr Cycle Hub Loop 4Road Cycling Trail · 47.0 km
- Birr Cycle Hub Loop 3 BRoad Cycling Trail · 44.3 km
- Birr Cycle Hub Loop 5Road Cycling Trail · 41.9 km
- Offaly WayLong Distance Waymarked Way · 40.5 km
- Birr Cycle Hub Loop 4 ARoad Cycling Trail · 40.1 km
- Birr Cycle Hub Loop 7Road Cycling Trail · 37.3 km
+ 23 more on the map.
Forests 7
Nature reserves 3
- Clara Bog Nature Reserve
- Mongan Bog Nature Reserve
- Raheenmore Bog Nature Reserve
History and things to do
Walled towns 1
- Daingean
Excavations 27
- E3908 Castleroan 2, County OffalyExcavation report (TII)
- E3909 Castleroan, County OffalyExcavation report (TII)
- E2643 Moyally, County OffalyExcavation report (TII)
- E2647 Kilcurley 1, County OffalyExcavation report (TII)
- E4000 Loughan, County OffalyExcavation report (TII)
- E2653 Cappydonnell Big 1, County OffalyExcavation report (TII)
+ 21 more on the map.
Attractions 13
- Birr Equestrian CentreNature and Wildlife
- Leap CastleHistoric Houses and Castle
- Lemanaghan Monastic SiteHistoric Houses and Castle
- Mick The Miller MonumentAttraction
- Mountlucas Wind FarmNatural Landscape
+ 5 more on the map.
Stay and what's on
Events 1
- Apitherapy Seminar - Bee Products for Health & Wellbeing2026-11-14 · Bridge House Hotel, Tullamore
Places to stay
22 properties in County Offaly 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.