Best Hikes in the Mourne Mountains

The Mourne Mountains in Northern Ireland are a hiker’s paradise, offering breathtaking landscapes, challenging trails, and unrivaled natural beauty. Whether you’re an experienced hiker or a beginner, the Mourne Mountains have something to offer for everyone. In this comprehensive guide, we’ll explore some of the best hikes in the region, from easy walks to strenuous treks.

You can find all of these and hundreds more hiking trails in Northern Ireland on HiiKER. Download free offline maps to make sure you’re ready to hit the trail with confidence.

Slieve Donard

Slieve Donard – The highest mountain in Northern Ireland

Slieve Donard is the highest peak in the Mourne Mountains, standing at an impressive 850 meters (2,788 feet). This hike offers a challenging and strenuous climb, but the reward is a breathtaking view from the summit. On a clear day, you can see the Isle of Man and Scotland, as well as the surrounding counties of Down, Antrim, and Louth. The trail to the summit is well-marked and takes about 3-4 hours to complete.

Slieve Donard route map on HiiKER

Slieve Doan

The Trail to Slieve Doan

Slieve Doan is a lesser-known peak in the Mourne Mountains, but offers a fantastic hiking experience. The hike to the summit is relatively moderate, with some steep sections, and takes about 2-3 hours to complete. Along the way, you’ll pass through beautiful forests and cross streams, offering plenty of opportunities to take in the stunning scenery.

At the summit of Slieve Doan, you’ll be treated to panoramic views of the surrounding landscape, including the nearby peaks and valleys of the Mourne Mountains. This hike is a great choice for those looking for a challenging hike without the strenuous climb of Slieve Donard.

Slieve Doan route map on HiiKER

Trassey Track

Crossing the Trassey River

The Trassey Track is a long and challenging hike that takes you through the heart of the Mourne Mountains. This hike starts at the car park in Kilbroney Park and takes you along the Trassey River to the beautiful Hares Gap. Along the way, you’ll pass by several waterfalls, cross streams, and ascend steep hills. The entire hike takes about 4-6 hours to complete, so be prepared for a full day of adventure.

The Trassey Track route map on HiiKER

The Mourne Way

Lush Green views along the Mourne way

The Mourne Way is a long-distance hiking trail in Northern Ireland that winds its way through the stunning Mourne Mountains. This trail offers a diverse range of experiences, from walking along peaceful rivers and through lush forests, to summiting peaks with panoramic views of the surrounding landscape.

The Mourne Way route map on HiiKER

The Mourne Way is approximately 36 KM long and takes about 8-10 to complete. The trail is well-marked and passes by several popular destinations in the Mourne Mountains, including Slieve Donard, the highest peak in Northern Ireland, and the picturesque Newcastle beach.

Along the way, you’ll have the opportunity to experience the unique culture and history of Northern Ireland, including ancient ruins, charming villages, and local pubs. This trail is a perfect way to immerse yourself in the natural beauty and rich heritage of the Mourne Mountains.

Notable Mentions

  • Silent Valley Hike: This hike takes you along a beautiful reservoir and through the heart of the Mourne Mountains, offering stunning views of the surrounding landscape.
  • Spink and Doan Loop Hike: This hike takes you up to the summits of two peaks, Spink and Doan, and offers fantastic views of the surrounding valleys.
  • Tollymore Forest Park Hike: This park is located on the edge of the Mourne Mountains and offers several trails through stunning forests and along the river.


The Mourne Mountains are a must-visit destination for any hiking enthusiast. With its challenging trails, breathtaking views, and diverse landscape, the region offers a unique and unforgettable hiking experience. Whether you’re looking for an easy walk or a strenuous trek, the Mourne Mountains have something for everyone. So grab your hiking boots and download your map with HiiKER, it’s time to explore the best hikes in the Mourne Mountains!