| Mayo | Achill Cycle Hub - Loop 1 | On Road Cycling Trails | | Circular | 44.00 | Challenging | 3hr | Keel |
| Mayo | Achill Cycle Hub - Loop 2 | On Road Cycling Trails | | Circular | 28.00 | Moderate | 2hr 30min | Keel |
| Mayo | Achill Cycle Hub - Loop 3 | On Road Cycling Trails | | Circular | 12.00 | Easy | 1hr 30min | Keel |
| Mayo | Achill Island - Dooagh loop | Walking/Hiking Trails | *** | Circular | 4.00 | Easy | 1hr | Dooagh |
| Mayo | Ballina Slí | Sli Na Slainte Walking Routes | | Circular | 3.20 | Easy | 50min | Ballina |
| Mayo | Ballycastle Sralagagh Loop Walk | Walking/Hiking Trails | *** | Circular | 9.50 | Moderate | 3hr 30min | Ballycastle |
| Mayo | Bellacorick Bog Loop Walk | Walking/Hiking Trails | *** | Circular | 13.00 | Moderate | 2hr 13min | Crossmolina (14km) |
| Mayo | Belleek - Multi Access | Walking/Hiking Trails | *** | Linear | 1.7 | Easy - buggy and wheelchair friendly | 1hr 10min | Ballina |
| Mayo | Belleek - Nature Trail | Walking/Hiking Trails | *** | Linear and Circular | 4 | Moderate | 1hr | Ballina |
| Mayo | Belleek Wood Greenway | Walking/Hiking Trails | | Linear | 4.20 | Easy - buggy and wheelchair friendly | 40min | Ballina |
| Mayo | Belleek Wood Greenway | Off-Road Cycling Trails | | Linear | 4.20 | Easy - buggy and wheelchair friendly | 15min | Ballina |
| Mayo | Benwee Loop Walk | Walking/Hiking Trails | *** | Circular | 12.40 | Strenuous | 5hr | Carrowteige/Belmullet |
| Mayo | Bothy loop | Walking/Hiking Trails | *** | Circular | 6.00 | Easy | 1hr 30min | Newport |
| Mayo | Broadhaven Slí | Sli Na Slainte Walking Routes | | Circular | 3.10 | Easy | 30min | Belmullet |
| Mayo | Callow Loop Walk | Walking/Hiking Trails | *** | Circular | 6.50 | Moderate | 2hr | Foxford |
| Mayo | Carrowteige - Beach loop | Walking/Hiking Trails | *** | Circular | 6.50 | Easy | 1hr 30min | Carrowteige/Belmullet |
| Mayo | Carrowteige - Black Ditch loop | Walking/Hiking Trails | *** | Circular | 13.00 | Moderate | 3hr | Carrowteige/Belmullet |
| Mayo | Carrowteige - Children of Lir loop | Walking/Hiking Trails | *** | Circular | 10.00 | Moderate | 2hr 30min | Carrowteige/Belmullet |
| Mayo | Ceathrú Thaidhg Slí | Sli Na Slainte Walking Routes | | Circular | 3.00 | Easy | 30min | Ceathre Thaidhg |
| Mayo | Clare Island - Fawnglass loop | Walking/Hiking Trails | *** | Circular | 3.00 | Easy | 1hr 15min | Louisburgh |
| Mayo | Clare Island - Knocknaveen loop | Walking/Hiking Trails | *** | Circular | 8.00 | Moderate | 2hr 30min | Louisburgh |
| Mayo | Clare Lake Loop Walk | Walking/Hiking Trails | *** | Circular | 1.30 | Multi-Access/Easy | 30min | Claremorris |
| Mayo | Clogher - Bog loop | Walking/Hiking Trails | ** | Circular | 8.00 | Easy | 3hr | Clogher |
| Mayo | Clogher Holy Well Loop | Walking/Hiking Trails | ** | Circular | 5.00 | Easy | 1hr | Clogher |
| Mayo | Clogher Red Walk | Walking/Hiking Trails | *** | Linear | 5.00 | Easy | 1hr | Clogher |
| Mayo | Cong - Nature loop | Walking/Hiking Trails | *** | Circular | 2 | Easy | 1hr | Cong |
| Mayo | Cong - Pigeon loop | Walking/Hiking Trails | *** | Circular | 2 | Easy | 1hr | Cong |
| Mayo | Croagh Patrick Heritage Trail | Walking/Hiking Trails | ** | Linear | 61.00 | Moderate | 3 days | Balla |
| Mayo | Cross - Blue Loop | Walking/Hiking Trails | *** | Circular | 7.60 | Moderate | 2hr | Belmullet |
| Mayo | Cross - Green Loop | Walking/Hiking Trails | *** | Circular | 5.70 | Easy | 1hr 30min | Belmullet |
| Mayo | Crucspullagadaun Loop Walk | Walking/Hiking Trails | *** | Circular | 9.00 | Moderate | 3hr 30min | Manulla |
| Mayo | Deserted Village Walk Achill Island | Walking/Hiking Trails | *** | Linear | 4.50 | Moderate | 1hr 30min | Dooagh |
| Mayo | Drumsheen Loop - Bonniconnlan | Walking/Hiking Trails | *** | Circular | 7 | Easy | 2hr 15min | Bonniconlon |
| Mayo | Enniscoe House loop | Walking/Hiking Trails | ** | Circular | 2.5 | Easy | 1hr | Crossmolina |
| Mayo | Erris Head loop | Walking/Hiking Trails | *** | Circular | 5.00 | Easy | 2hr | Belmullet |
| Mayo | Glen Loop - Bonniconnlan | Walking/Hiking Trails | *** | Circular | 14 | Moderate | 3hr 55min | Bonniconlon |
| Mayo | Great Western Greenway | Walking/Hiking Trails | *** | Linear | 42.00 | Easy | 10hr | Westport, Newport, Mallaranny or Achill |
| Mayo | Great Western Greenway | Off-Road Cycling Trails | *** | Linear | 42.00 | Easy | 4hr | Westport, Newport, Mulranny or Achill |
| Mayo | Great Western Greenway - Castlebar to Turlough | Off-Road Cycling Trails | ** | Linear | 7.30 | Easy | 45min | Castlebar |
| Mayo | Great Western Greenway - Castlebar to Turlough | Walking/Hiking Trails | ** | Linear | 7.30 | Easy | 1hr 30min | Castlebar |
| Mayo | Great Western Greenway - Section 1 (Westport - Newport) | Walking/Hiking Trails | *** | Linear | 9.00 | Easy | 2hr 20min | Westport |
| Mayo | Great Western Greenway - Section 1 (Westport - Newport) | Off-Road Cycling Trails | *** | Linear | 9.00 | Easy | 55min | Westport |
| Mayo | Great Western Greenway - Section 2 (Newport - Mulranny) | Walking/Hiking Trails | *** | Linear | 19.00 | moderate | 5hr 33min | Newport |
| Mayo | Great Western Greenway - Section 2 (Newport - Mulranny) | Off-Road Cycling Trails | *** | Linear | 19.00 | Moderate | 1hr 56min | Newport |
| Mayo | Great Western Greenway - Section 3 (Mullaranny - Achill Sound) | Walking/Hiking Trails | *** | Linear | 14.10 | Easy | 3hr 31min | Mallaranny |
| Mayo | Great Western Greenway - Section 3 (Mulranny - Achill Sound) | Off-Road Cycling Trails | *** | Linear | 14.10 | Easy | 1hr 24min | Mallaranny |
| Mayo | Inishbiggle - Bull's Mouth loop | Walking/Hiking Trails | *** | Circular | 5.00 | Easy | 1hr | Mulranny |
| Mayo | Inishbiggle - Gubnadoogha loop | Walking/Hiking Trails | *** | Circular | 4.00 | Moderate | 1hr | Mulranny |
| Mayo | Inishturk - Lough Coolaknick loop | Walking/Hiking Trails | *** | Circular | 5.00 | Easy | 2hr | Louisburgh |
| Mayo | Keenagh loop | Walking/Hiking Trails | *** | Circular | 12.00 | Hard | 4hr | Crossmolina |
| Mayo | Killeen Killadoon Beach Loop | Walking/Hiking Trails | *** | Circular | 6.40 | Easy | 0min | Louisburgh |
| Mayo | Killeen White Stone Bog Loop | Walking/Hiking Trails | *** | Circular | 7.20 | Easy | 0min | Louisburgh |
| Mayo | Kilmaine - Church walk | Walking/Hiking Trails | *** | Circular | 4.00 | Easy | 45min | Kilmaine |
| Mayo | Kilmaine - Killernan loop | Walking/Hiking Trails | *** | Circular | 7.00 | Easy | 2hr | Kilmaine |
| Mayo | Kilmaine - Nature walk | Walking/Hiking Trails | *** | Circular | 1.50 | Easy | 30min | Kilmaine |
| Mayo | Lackan Trails - Blue Loop | Walking/Hiking Trails | *** | Circular | 11.00 | Moderate | 4hr | Ballycastle |
| Mayo | Lackan Trails - Green Loop | Walking/Hiking Trails | *** | Circular | 8.00 | Moderate | 3hr | Ballycastle |
| Mayo | Land of the Giants | Walking/Hiking Trails | *** | Circular | 3.20 | Multi-Access/Easy | 50min | Claremorris |
| Mayo | Larganmore Loop | Walking/Hiking Trails | *** | Circular | 14.00 | Moderate | 4hr 30min | Foxford |
| Mayo | Letterkeen loop | Walking/Hiking Trails | *** | Circular | 12.00 | Hard | 3hr | Newport |
| Mayo | Lettermaghera - Derradda loop | Walking/Hiking Trails | *** | Circular | 10.00 | Moderate | 4hr | Newport |
| Mayo | Lough Avoher loop | Walking/Hiking Trails | ** | Circular | 10.00 | Moderate | 2hr 30min | Newport |
| Mayo | Louisburgh Cycle Hub Loop 1 (Roonagh Quay) | On Road Cycling Trails | | Circular | 19.00 | Moderate | 1hr 30min | Louisburgh Town |
| Mayo | Louisburgh Cycle Hub Loop 2 (Bunowen) | On Road Cycling Trails | | Circular | 7.00 | Moderate | 45min | Louisburgh Town |
| Mayo | Louisburgh Cycle Hub Loop 3 (Derrymore) | On Road Cycling Trails | | Loop | 26.00 | Family | 2hr | Louisburgh Town |
| Mayo | Moorehall Walk | Walking/Hiking Trails | *** | Circular | 3.00 | Easy | 1hr 30min | Ballinrobe |
| Mayo | Mulranny - Causeway loop | Walking/Hiking Trails | ** | Circular | 4 | Easy | 1hr 15min | Mulranny |
| Mayo | Mulranny - Lookout Hill loop | Walking/Hiking Trails | ** | Circular | 6 | Moderate | 2hr 15min | Mulranny |
| Mayo | Murrisk Loop | Walking/Hiking Trails | *** | Circular | 4.30 | Moderate | 2hr 25min | Murrisk |
| Mayo | Murrisk Mountain Loop | Walking/Hiking Trails | *** | Circular | 3.20 | Moderate | 1hr 45min | Murrisk |
| Mayo | Murrisk Pier Loop | Walking/Hiking Trails | *** | Circular | 3.30 | Easy | 1hr | Murrisk |
| Mayo | Raheens Wood Multi Access | Walking/Hiking Trails | *** | Linear | 0.30 | Buggy and wheelchair friendly | 20min | Castlebar |
| Mayo | Raheens Wood Trail | Walking/Hiking Trails | *** | Circular | 1.80 | Easy | 1hr | Castlebar |
| Mayo | Slí Grainne Mhaol | Walking/Hiking Trails | *** | Circular | 6.70 | Strenuous | 2hr 30min | Derreens |
| Mayo | Tourmakeady - Lake Walk | Walking/Hiking Trails | *** | Circular | 1.50 | Easy | 30min | Partry |
| Mayo | Tourmakeady loop | Walking/Hiking Trails | | Circular | 5.00 | Easy | 1hr 30min | Tourmakey |
| Mayo | Tournmakeady - Nature Walk | Walking/Hiking Trails | *** | Circular | 2.50 | Moderate | 1hr | Partry |
| Mayo | Western Way - Mayo | Walking/Hiking Trails | ** | Linear | 124.00 | Moderate | 5 days | Leenaun |
| Mayo | Western Way Mayo - Achill Spur to Mulranny | Walking/Hiking Trails | *** | Linear | 17.00 | Easy | 4hr 30min | Newport |
| Mayo | Westport Cycle Hub - Loop 1 | On Road Cycling Trails | | Circular | 24.00 | Moderate | 2hr 30min | Westport |
| Mayo | Westport Cycle Hub - Loop 2 | On Road Cycling Trails | | Circular | 14.00 | Easy | 1hr 30min | Westport |
| Mayo | Westport Cycle Hub - Loop 3 | On Road Cycling Trails | | Circular | 8.00 | Easy | 1hr | Westport |
| Mayo | Westport Greenway | Walking/Hiking Trails | ** | Linear | 2.50 | Easy | 30min | Westport |
| Mayo | Westport Greenway | Off-Road Cycling Trails | ** | Linear | 2.50 | Easy | 15min | Westport |
| Mayo | Westport National Coastal Trail | On Road Cycling Trails | | Linear | 9.00 | Moderate | 2hr 30min | Westport |
| Mayo | Westport Slí | Sli Na Slainte Walking Routes | | Linear | 2.50 | Easy | 30min | Westport |