Lough Ouler Loop is a 4.6 mile moderately trafficked loop trail located near Roundwood, County Wicklow, Ireland that features a lake and is rated as moderate. The trail is primarily used for hiking, walking, and nature trips.

Length4.6 miElevation gain1,476 ftRoute typeLoop
HikingNature tripsWalkingLakeRiverViewsWildflowersWildlifeMuddyNo shade
Description
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This is a beautiful hike up to and around the heart-shaped lake of Lough Ouler. The views on the ascent are spectacular on a clear day. Be sure to bring proper footwear since the terrain can be quite boggy and wet. Gaiters can be useful after especially wet weather.

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Reviews (105)
Photos (132)
Activities (68)
Completed (201)
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Stephen Quirke
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Hiking

Over all really nice 2.5-3hr hike - one intense incline before summiting but aside from that straight forward enough

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Gary Mason
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HikingGreat!

amazing walk, very wet & marshy at start & finish, but the views are some of the best in wicklow

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Clare Savage
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HikingGreat!

This is one of my favorite hikes ever! Stunning views up and down! Would recommend boots rather than runners as can be boggy and wet in places depending on the time of year! The love heart lake is beautiful!

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Kevin Byrne
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HikingFloodedGreat!Muddy

Great trails

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Emma Byrne
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HikingFloodedMuddyRocky

Lovey hike to do, done it today and it hasn’t rained in a week so thought the land might be dry but it was 70% big the whole way so a thick pair of socks are essential !! Other than that the views are breathtaking and very easy to get to just keep going straight straight straight up the mountain, we went the opposite way to to the map !

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Evan Guiton
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HikingMuddy

Great trail with great views. I done the whole loop and only crossed paths with two other people. Very marshy so good boots would be ideal. Can be tricky to find the beginning of the trail but once you are on it it’s hard to get lost.

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Tanya Clarke
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HikingFlooded

The water on the river had rose so we couldn’t cross and the walk along the river is really flooded.

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Eduardo Moffitt
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Hiking

A tricky start trying to cross the river but arguably my favourite hike in Leinster! Not for beginners and very boggy under foot during the winter. Views are incredible! Bring a change of clothes

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Michael O’Donoghue
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Hiking

Great hike. A little over 2 hours round trip. We went clockwise, and there are some nice climbs, especially towards the peak. Plenty of very wet terrain, so good boots are an absolute minimum. Fantastic views for a late November afternoon, well worth it.

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David Finnigan
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Hiking

Very steep going up, good hiking boots most definitely. Good fitness level will make it a bit easier, but not essential. Its nearly harder coming down, because you have to stop yourself from slipping. Better to do it, when it's been for a few days. Its closer to Laragh then Roundwood, just up past the waterfall. There's a small car park.

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Tanya Clarke
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Hiking

Loved this hike. Would suggest proper boots but it’s not too bad, mainly boggy at the start if you go clockwise so as other reviews suggest the loop could be done anti clockwise.

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Sarh Lo
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HikingGreat!Muddy

Good hike to see the famous heart shaped lake. A few boggy patches so waterproof shoes advised. There is a Carpark at the bottom. Easy to moderate hike.

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Andrea Jameson
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HikingGreat!MuddyOff trailRocky

Myself and my bestie did this loop today ... We parked at the carpark just passed Glenmacnass Waterfall, crossed the river and headed upwards and upwards and upwards.... Once we got to the top of the ridge Lough Ouler comes into view on your right hand side... We found a little ledge right above the lake where we had lunch We then started the climb up Tonlegee Mountain to continue around the lake loop and come back down to the carpark It is rough enough terrain so a good pair of walking boots are a must and I couldn't have done it without my walking sticks The ground in most parts is very boggy and wet, there is no real pathway as such so you just kinda make your own way It is well worth it for the views and the feeling of exhilaration you get once you get to the top, We had a beautiful sunny day and it was still a little cool at the top so for anyone thinking of doing this hike prepare well, take your time and enjoy every minute of it

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Kate Lutsenko
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HikingMuddyNo shade

Everyone is saying go anti-clockwise, but I made a mistake and ended up going clockwise and I don’t regret it! The whole trail is very muddy and boggy, and the left part of the loop is very steep and slippery, so I’m guessing if I had to descend there I’d probably end up sliding down on my bum. Descend on the right side was a little less muddy, so it was a pretty safe descend. I really hope the trail will get fixed, because the footfall is really destroying it, and sometimes it’s impossible to tell if it’s a trail or just some wrecked grass. If not for the mud and bog, it would have been a perfect hike. The views are amazing and we were super lucky with the weather.

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Jo Holdaway
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WalkingGreat!

Advise as many have suggested and do this loop anti clockwise to the map here. Challenging but stunning ascent with clear views to the sea and over the Wicklow mountains. Ouler is breathtaking on a blue sky day! Boggy and pretty wet path on lower path near the river just need decent walking boots. By far my fave walk in Wicklow. 3hrs solid stomp.

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Naomi Doonan
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HikingFloodedGreat!Muddy

Go anti-clockwise loop. Started in Tonelagee car park & headed across the river (very wet here - would recommend. Hiking boots) and headed straight up and around the lake. We got a beautiful morning & the views from the top were amazing! Lovely 3 hour hike!

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Nicola Foynes
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HikingMuddyScramble

Can be incredibly muddy, hiking boots a must. Trail can be hard to find at times so you must have your wits about you. The view of Lough Ouler is excellent, definitely worth doing.

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Barry O' Brien
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HikingGreat!

Great hike and well worth doing. We done the full loop starting from Glenmacnass waterfall and it took a group of four approx 2 hours and 30 minutes. Relatively straightforward, parts of the trail are hard to see but you can't go too far wrong , the lower parts of the trail can be a little wet and mucky but nothing too bad on the day we done it which was great weather. The lake you have to cross over is simple , we were expecting white water rapids. It can be done in a pair of old runners if you don't have hiking boots just make sure there comfy and you don't mind getting them a bit wet. Overall was a fantastic trail with great views and would definitely recommend. Don't forget to bring a walking pole !

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