Because of the long history of mapping in Ireland, OSNI’s mapping data is amongst the most detailed and comprehensive in the world.
https://www.nidirect.gov.uk/campaigns/ordnance-survey-of-northern-ireland
Ordnance Survey Northern Ireland - Activity Map 1:50k
United Kingdom
Medium
The Ireland Way®
County Cork, Ireland · 5.0 · 11 reviews
Medium
Ulster Way
County Antrim, Northern Ireland · 5.0 · 6 reviews
Medium
International Appalachian Trail
County Donegal, Ireland · 5.0 · 6 reviews
Difficult
Mourne Wall Walk
County Down, Northern Ireland · 5.0 · 5 reviews
Medium
St Patrick's Way
County Armagh, Northern Ireland · 5.0 · 4 reviews