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Ireland🇮🇪 | hikesGlendaloughglacial lakes, monastic ruins, wooded slopes | things to do and best time to go

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Backpacking in Glendalough
👍 Recommendedhike ranked #4
By Johan Kruseman 🇳🇱 | Updated July 30, 2026

Most people picture Glendalough as a gentle monastery stroll for bus tours. That’s only half the story. Tucked in the Wicklow Mountains, about an hour south of Dublin, it’s also home to one of Ireland’s most satisfying leg-burner circuits. The classic Spinc and Glendalough loop isn’t huge on paper—roughly 9 km—but the wooden steps punch straight up the valley wall, and you feel every one. The payoff is fierce: hanging boardwalks above the dark lake, cliffs dropping to the water, and boggy uplands that feel far wilder than their distance from the city suggests. It’s easy to reach by public bus from Dublin, which means crowds, especially near the monastic ruins and lower lake. Push past them. Compared with other Irish hikes, Glendalough is shorter and more manicured than, say, Connemara or Kerry, but the effort-to-reward ratio is ridiculously high.

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Best time to go: April - October
Duration: 5 to 6 days
Distance: 1 to 7 kilometers
Total ascent: 500 meters


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✨ Why go?
Ranked #4 hike in Ireland
Why Glendalough should be on your travel list

The Glendalough hike in Ireland is a magnet for backpackers, and for good reason. First off, the scenery-to-effort ratio is off the charts. You’re greeted by ancient monastic ruins, shimmering lakes, and lush valleys that feel like they’ve been plucked from a storybook. It’s a feast for the eyes with minimal strain on your legs.

Getting there is a breeze. Public transport access is solid, with buses zipping from Dublin to Glendalough, making it a perfect day trip or a quick stop on a longer journey. You can tailor your hike to your mood, with flexible distances ranging from a leisurely stroll around the lakes to a more challenging trek up to the Spinc for panoramic views that’ll make your heart race.

And let’s talk about cost: it’s practically free. Just pack your gear, lace up your boots, … read more 👉
The Glendalough hike in Ireland is a magnet for backpackers, and for good reason. First off, the scenery-to-effort ratio is off the charts. You’re greeted by ancient monastic ruins, shimmering lakes, and lush valleys that feel like they’ve been plucked from a storybook. It’s a feast for the eyes with minimal strain on your legs.

Getting there is a breeze. Public transport access is solid, with buses zipping from Dublin to Glendalough, making it a perfect day trip or a quick stop on a longer journey. You can tailor your hike to your mood, with flexible distances ranging from a leisurely stroll around the lakes to a more challenging trek up to the Spinc for panoramic views that’ll make your heart race.

And let’s talk about cost: it’s practically free. Just pack your gear, lace up your boots, and you’re off. After a day of exploring, nothing beats that first cold beer in a local pub, swapping stories with fellow travelers. The Glendalough hike isn’t just a trek; it’s a vibrant part of the Irish experience that rewards every ounce of effort you put in.
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💡 HighlightsThe experiences that define the visit

  1. Glendalough Monastic City & Round Tower — A compact slice of 6th-century Ireland: stone churches, high crosses and the iconic round tower that survived Viking raids. It’s the cultural heart of the valley, where the hush between the trees and mossy graves gives the place a real sense of history you won’t get on more commercial trails.
  2. Poulanass Waterfall — A pretty, mossy cascade tucked into a wooded ravine just a short walk from the monastic site. The sound and close-up view of tumbling water feel unexpectedly wild for such an accessible spot, and it’s a great place to cool off and listen to the forest for birds and the odd clap of sheep bells.
  3. The Spinc Boardwalk & Cliff Viewpoint — A dramatic ridge walk with wooden boardwalks that leads to jaw-dropping panoramas over the Upper Lake and
read more 👉
  1. Glendalough Monastic City & Round Tower — A compact slice of 6th-century Ireland: stone churches, high crosses and the iconic round tower that survived Viking raids. It’s the cultural heart of the valley, where the hush between the trees and mossy graves gives the place a real sense of history you won’t get on more commercial trails.
  2. Poulanass Waterfall — A pretty, mossy cascade tucked into a wooded ravine just a short walk from the monastic site. The sound and close-up view of tumbling water feel unexpectedly wild for such an accessible spot, and it’s a great place to cool off and listen to the forest for birds and the odd clap of sheep bells.
  3. The Spinc Boardwalk & Cliff Viewpoint — A dramatic ridge walk with wooden boardwalks that leads to jaw-dropping panoramas over the Upper Lake and the Wicklow Mountains; steep drop-offs and granite crags give the route serious theatre. It’s my personal favorite — best at golden hour and rewarding if you like wide, expansive views that feel bigger than the map.
  4. Upper Lake — Wilder and quieter than the Lower Lake, the Upper Lake sits in a glacial corrie that makes for moody reflections and prime solitude when the mist rolls in. Hike the shore paths for photo opportunities and the chance to spot more solitary wildlife — foxes, various birds and, if you’re lucky and quiet, sika deer sightings.
  5. Glenealo Valley & Corrie Scenery — Rougher terrain and steep-sided corries give this part of Glendalough a more mountainous, alpine feel compared with the lake walks. Pebbly streams, scree slopes and open expanses make it stand out from gentler wooded trails, and it’s where you really notice the glacial shaping of the landscape.
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Things to do around Glendalough

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🌤️ When to go?When to go for the best experience


  • Weather: Spring and early autumn offer the most reliable weather—expect cool, damp air with occasional drizzle. Summer can bring sudden downpours, but also stretches of clear skies. Winter is wet and often foggy, making trails slippery and visibility low.

  • Temperature: From May to September, temperatures hover between 12°C and 20°C (54°F to 68°F), perfect for sweating it out without overheating. Outside these months, expect chills dipping to 0°C (32°F) or below, especially at dawn and dusk.

  • Daylight Hours: Long summer days stretch up to 17 hours, giving you plenty of time to push deeper into the valleys. Winter days shrink to about 8 hours, forcing early starts and quicker turnarounds.

  • Crowds: Peak season (June to August) packs the trails with tourists and day-trippers, especially
read more 👉

  • Weather: Spring and early autumn offer the most reliable weather—expect cool, damp air with occasional drizzle. Summer can bring sudden downpours, but also stretches of clear skies. Winter is wet and often foggy, making trails slippery and visibility low.

  • Temperature: From May to September, temperatures hover between 12°C and 20°C (54°F to 68°F), perfect for sweating it out without overheating. Outside these months, expect chills dipping to 0°C (32°F) or below, especially at dawn and dusk.

  • Daylight Hours: Long summer days stretch up to 17 hours, giving you plenty of time to push deeper into the valleys. Winter days shrink to about 8 hours, forcing early starts and quicker turnarounds.

  • Crowds: Peak season (June to August) packs the trails with tourists and day-trippers, especially on weekends. Shoulder seasons offer quieter paths and a more intimate connection with the rugged landscape.

  • Seasonal Activities: Summer brings guided hikes and boat tours on the lakes, adding layers to your adventure. Autumn colors transform the woods, but some services start winding down by late September.

  • Price Fluctuations: Accommodation and transport costs spike in summer. Booking in shoulder seasons can save you a chunk of change and still deliver solid hiking conditions.


Pro-tip: Aim for late May or early September—cool enough to keep the sweat manageable, light crowds to let the silence sink in, and prices that won’t punch your wallet.


source: climatestotravel.comJANJanuary: below average for travelingFEBFebruary: below average for travelingMARMarch: fair for travelingAPRApril: highly recommended for travelingMAYMay: excellent for travelingJUNJune: highly recommended for travelingJULJuly: good for travelingAUGAugust: good for travelingSEPSeptember: excellent for travelingOCTOctober: highly recommended for travelingNOVNovember: fair for travelingDECDecember: below average for traveling
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If you enjoy meeting fellow travelers, consider choosing hostels with high ratings for atmosphere. On the other hand, if you prefer having your own space, a hotel might be a better option.

🥾 Hike detailsEverything you need to know before hiking Glendalough

Total Distance: The Glendalough trail is approximately 10 kilometers (6.2 miles) long, making it a solid half-day hike for most folks.

Estimated Duration: Expect to spend around 3 to 5 hours on the trail, depending on your pace and how often you stop to soak in the views or snap photos.

Difficulty Level: This trail is generally rated as moderate. You’ll encounter some steep sections, but nothing too crazy. Just be prepared for a bit of a workout!

Starting Point: The trailhead is located at the Glendalough Visitor Centre. To get there by public transport, you can take a bus from Dublin. The … read more 👉
Total Distance: The Glendalough trail is approximately 10 kilometers (6.2 miles) long, making it a solid half-day hike for most folks.

Estimated Duration: Expect to spend around 3 to 5 hours on the trail, depending on your pace and how often you stop to soak in the views or snap photos.

Difficulty Level: This trail is generally rated as moderate. You’ll encounter some steep sections, but nothing too crazy. Just be prepared for a bit of a workout!

Starting Point: The trailhead is located at the Glendalough Visitor Centre. To get there by public transport, you can take a bus from Dublin. The 133 bus from Dublin to Glendalough runs regularly, and the journey takes about 1.5 hours. Just hop off at the Visitor Centre.

Major Landmarks Along the Route:
  • Glendalough Monastic Site: An ancient monastic settlement founded in the 6th century, featuring a round tower and several churches.
  • Upper Lake: A stunning glacial lake surrounded by mountains, perfect for a picnic or a quick dip if you’re brave.
  • Lower Lake: Another picturesque lake, often less crowded, with lovely walking paths around it.
  • St. Kevin’s Cell: A small church that adds a touch of history to your hike, nestled in a serene setting.

Type of Terrain and Scenery: The trail features a mix of well-maintained paths and some rougher, rocky sections. You’ll wander through lush woodlands, cross streams, and enjoy breathtaking views of the Wicklow Mountains. The scenery is a stunning blend of green hills, shimmering lakes, and rugged cliffs.

Typical Vegetation and Wildlife: Expect to see a variety of native Irish flora, including ferns, heather, and oak trees. Wildlife is also abundant; keep an eye out for deer, various bird species, and maybe even a fox if you’re lucky. The area is rich in biodiversity, making it a delight for nature lovers.
⚠️ Hiking info can sometimes be outdated or inaccurate. Before you hit the trail, check the latest conditions with locals. If you do spot anything that's off, I'd love to hear from you, so I can update it for fellow travelers.

🛡️ SafetyScams, Hazards, and Annoyances

Glendalough’s trails invite you to explore, but don’t underestimate the elements. Weather can shift from sunny to drizzly in minutes. Dress in layers and pack a waterproof jacket. The terrain is mostly well-maintained, but some sections can be steep and rocky. Watch your footing, especially on the descent; a slip here can lead to a muddy tumble.

Navigation is straightforward, but keep an eye on trail markers. The last thing you want is to wander off course when the sun starts to dip. Wildlife is generally shy, but you might spot a deer or a curious fox. Respect their space; don’t feed them or approach too closely.

Timing matters. Early mornings offer solitude and cooler temps, while afternoons can get crowded. Carry enough water and snacks to fuel your journey. A good pace is key—enjoy the … read more 👉
Glendalough’s trails invite you to explore, but don’t underestimate the elements. Weather can shift from sunny to drizzly in minutes. Dress in layers and pack a waterproof jacket. The terrain is mostly well-maintained, but some sections can be steep and rocky. Watch your footing, especially on the descent; a slip here can lead to a muddy tumble.

Navigation is straightforward, but keep an eye on trail markers. The last thing you want is to wander off course when the sun starts to dip. Wildlife is generally shy, but you might spot a deer or a curious fox. Respect their space; don’t feed them or approach too closely.

Timing matters. Early mornings offer solitude and cooler temps, while afternoons can get crowded. Carry enough water and snacks to fuel your journey. A good pace is key—enjoy the views without rushing. When you finally reach the upper lakes, the sight of the shimmering water against the rugged landscape makes every step worthwhile.

Other Irish hikes near Glendalough

Explore more nearby:

  • Wicklow Way—upland forests, granite ridges, remote valleys| 11 km away
  • Burren Way—limestone pavements, rare wildflowers, ancient tombs| 182 km away
  • Kerry Way—mountain passes, bogland trails, lakeside stretches| 251 km away

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We 💚 feedbackIs it worth it?

Glendalough is a slice of heaven for those who crave both challenge and beauty. The trails push you, but the payoff? Epic views of the lakes framed by ancient trees. Just know that it can get crowded, especially in summer. You’ll share the path with plenty of fellow adventurers, which can take away from that serene vibe. Still, the journey is worth every step. Grab a cold pint afterward; you’ve earned it.

✈️ When did I visit Ireland?
Ireland was the last country of my 1,5 year travel around the world trip, which was july 2016. In July 2023 I visited Ireland again.

✍️ Help improve this page!
The information on this page is based on my own backpacking experience in Ireland, supplemented with up-to-date research and feedback from other travelers. Travel details can change, so if you notice anything outdated or incomplete, feel free to let me know.



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