Ireland Hiking & Trekking Guide 2025
Explore the best hiking trails and trekking routes in Ireland.
Ireland, the Emerald Isle, captivates visitors with its dramatic coastlines, ancient castles, vibrant cities, and legendary hospitality. From the rugged Cliffs of Moher to the lively pubs of Dublin, Ireland offers a perfect blend of natural beauty, rich history, and Celtic culture that enchants travelers year-round.
Top Hiking Trails
The best hikes Ireland has to offer.
Croagh Patrick
challengingIreland's most sacred mountain and one of its most rewarding hikes. The rocky quartzite ascent requires care near the summit, but the views over Clew Bay with its hundreds of islands are incomparable.
Glendalough Upper Lake Loop
moderateA classic Wicklow walk circling the atmospheric upper lake of Glendalough, passing the 6th-century monastic ruins, ancient oak woods, and two pristine mountain lakes. One of the most beautiful valleys in Ireland.
Cliffs of Moher Coastal Walk
moderateThe full cliff walk from Doolin to Liscannor offers the most dramatic perspectives on Ireland's most famous sea cliffs. The walk takes you to remote sections away from the visitor centre crowds.
Carrauntoohil via Devil's Ladder
expertThe ascent of Ireland's highest peak via the classic Devil's Ladder gully route. Requires good navigation and fitness; the loose scree near the summit and summit cross rewarding the hardiest hikers.
Killarney Black Valley Circuit
moderateA hidden gem circuit through the remote Black Valley, one of Ireland's most beautiful and least visited areas. Ancient glacial valleys, mountain passes, and the remote youth hostel at the valley's heart create an unforgettable experience.
Slieve League Sea Cliffs
moderateEurope's highest accessible sea cliffs at 601 meters dwarf the famous Cliffs of Moher. The walk along the ridge with the Atlantic crashing far below is both exhilarating and terrifying in equal measure.
Wicklow Way
moderateIreland's first long-distance walking route crosses the Wicklow Mountains through wild moorland, mountain passes, and wooded valleys. Day sections can be done independently, but the full route rewards those who walk it end to end.
Diamond Hill Loop, Connemara
moderateThe most accessible challenging walk in the west of Ireland, with a well-maintained path from the Connemara National Park visitor centre to the summit of Diamond Hill. Panoramic views of Kylemore Abbey and the Twelve Bens range reward the climb.
Causeway Coast Walk
easyThe most spectacular coastal walk in Northern Ireland linking the Giant's Causeway with Carrick-a-Rede rope bridge through dramatic basalt cliff scenery. Passes sea stacks, bays, and historic ruins.
Trails by Difficulty
Find trails that match your fitness level.
🟢 Easy
Flat or gentle gradients on clear paths, suitable for families with children and older adults. Examples: Glendalough Valley floor, Killarney National Park lake shores, coastal promenades
🟡 Moderate
Some elevation gain, clear paths, good fitness required. Most popular Irish hiking trails including Glendalough, Cliffs of Moher walk, Diamond Hill, and Slieve League
🟠 Challenging
Significant elevation, potentially rocky terrain, good fitness and appropriate footwear essential. Examples: Croagh Patrick, Carrauntoohil via normal routes
🔴 Expert
Scrambling, loose terrain, navigation skills required. Guide or experienced companion strongly recommended. Carrauntoohil's exposed ridges and winter conditions on high peaks
Complete Hiking Guide
Detailed trail descriptions, packing checklists, and route recommendations.
Hiking Preparation
What to bring and how to prepare.
Essential Gear
Day Hikes
- Sturdy hiking boots/shoes
- Plenty of water (2-3 liters)
- Snacks and lunch
- Sun protection (hat, sunscreen)
- Rain layer/jacket
- First aid kit
- Navigation (map, GPS, phone)
- Flashlight/headlamp
Multi-Day Treks
- All day hike essentials plus:
- Backpack (40-60L)
- Tent or shelter
- Sleeping bag and pad
- Cooking equipment
- Water purification
- Extra clothing layers
- Emergency supplies
Physical Preparation
- Start training weeks before challenging hikes
- Build up endurance with regular cardio
- Practice on local trails with elevation gain
- Break in new boots before the trip
- Acclimatize to altitude gradually if needed
Hiking Safety
Stay safe on the trails.
Always tell someone your hiking plans and expected return time. Carry emergency communication device in remote areas.
Check weather conditions before setting out. Turn back if conditions deteriorate. Never underestimate mountains.
Stay on marked trails. Getting lost in unfamiliar terrain can be dangerous. Carry navigation tools.
Be aware of wildlife. Research local animals and know how to respond to encounters.
Start early to allow plenty of daylight. Always aim to be back before dark.
Local Hazards
- Rapidly changing weather — Irish mountains can shift from sunshine to low cloud with rain in minutes; carry waterproofs even on clear days
- Cliff edges — many coastal paths have unfenced drops; stay on marked paths and keep children close
- Midges — tiny biting insects active in summer in still, sheltered areas; carry insect repellent especially in Connemara and Killarney
- Boggy ground — soft bog underfoot can be surprisingly deep; proper walking boots essential on mountain trails
- Limited mobile signal in remote valleys; download offline maps and share route plans with someone not hiking
- Mountain rescue services operate throughout Ireland; emergency number is 999 or 112, request Mountain Rescue
Best Time to Hike
Plan your hiking adventure for optimal conditions.
🌸 Spring
March to May brings longer days, lower crowds, and wildflowers on the Burren. Trails can be wet and some mountain routes muddy. Excellent for birdwatching. Pack waterproofs.
☀️ Summer
June to August is peak season with longest days (18+ hours in June) and best weather probability. Very busy at popular trails; start early. Midges (biting insects) can be bothersome in sheltered areas.
🍂 Fall
September and October offer the best combination of good weather, low crowds, and stunning autumnal colors in wooded valleys like Glendalough and Killarney. Highly recommended.
❄️ Winter
November to February brings short days and challenging conditions but dramatic moody landscapes. Stick to lower altitude trails. Croagh Patrick and high Kerry peaks can have ice and snow. Brilliant solitude.
Explore Ireland's Trails
Get our complete hiking guide with GPS routes, difficulty ratings, and local tips.
Download Hiking Guide