The best MTB trails around Llyn Eigiau
4.5
(174)
2,393
riders
28
rides
Mountain biking around Llyn Eigiau offers diverse terrain characterized by rolling hills, deep valleys, and scenic mountain lakes. The region features a network of trails that navigate through varied landscapes, from open moorland to more sheltered paths alongside reservoirs. Riders can expect a mix of ascents and descents, providing a challenging yet rewarding experience across the Welsh countryside. The area's geology contributes to a natural setting ideal for off-road cycling.
Best mountain bike trails around Llyn Eigiau
- The most popular mountain bike trail is Llyn Cowlyd and the Crafnant valley loop, a 17.1 miles (27.5 km) trail that takes 2 hours 36 minutes to complete, winding through valleys and past reservoirs.
- Another top favourite among local mountain bikers is Llyn Ogwen and Ogwen Obelisk – Tu Hwnt i'r Bont Tearoom loop from Capel Curig, a moderate 11.5 miles (18.5 km) path, offering views of mountain lakes and historic landmarks.
- Local mountain bikers also love the Bridge Over Llyn Mymbyr – Llyn Mymbyr loop from Capel Curig, a 10.0 miles (16.1 km) trail leading through scenic lake shores and gentle gradients, often completed in about 1 hour 11 minutes.
- Mountain biking around Llyn Eigiau is defined by mountain lakes, deep valleys, and hilly terrain. The network offers options for easy, moderate, and difficult routes, catering to various skill levels.
- The routes in Llyn Eigiau are highly rated by the komoot community with an average score of 4.4 stars from over 160 reviews. More than 2,300 mountain bikers have used komoot to explore Llyn Eigiau's varied terrain.
Last updated: May 27, 2026
4.1
(15)
78
riders
27.5km
02:36
680m
680m
Tackle the Llyn Cowlyd and Crafnant valley loop, a challenging 17.1-mile mountain biking route in Eryri (Snowdonia) National Park.
4.0
(2)
12
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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4.5
(2)
10
riders
16.1km
01:11
170m
170m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
29
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3
riders
73.1km
04:45
810m
810m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Tips from the Community
Loved this place and not far from Swallow Falls
1
0
Excellent sight looking across Llyn Peris which is 503mtrs above sea level. Dinorwig hydroelectric power station is straight across the lake, this generates 1728MW of power. There are 16 kilometres of deep tunnels in Elidir Mountain. This was opened in 1984
0
0
The visitor centre is located on the A5, approximately 5 miles south of Bethesda and approximately 4 miles west of Capel Curig, on the western side of Llyn Ogwen. There are a number of facilities including toilets, disabled toilets, an information room, public wifi and a small kiosk selling hot and cold snacks. From the visitor centre you can start a range of walks and climbs in the area. The most popular is the walk to Wales' first ever national nature reserve, the beautiful Cwm Idwal, a glacial lake with a mountainous backdrop. (Cwm Idwal National Nature Reserve)
11
0
Plas y Brenin - National Outdoor Centre, originally a coaching inn built in 1801, is situated in Capel Curig, in the heart of the Snowdonia National Park. This is the home of the National Mountain Centre. The centre has a bar and large terrace overlooking the lake. There is free parking. Plas y Brenin is a vibrant outdoor centre run by the Mountain Training Trust (MTT) on behalf of Sport England. It offers a wide range of courses under the banner of 'climbing, walking, paddling, cycling'.
12
0
Standing on this bridge you have a beautiful view of Llyn Mymbyr and the mountains behind it including Snowdon. This bridge connects Plas Y Brenin National Outdoor Centre with the forests and mountains on the other side.
13
0
If you want to park here, you have to reserve a parking space in advance for 20 GBP. We didn't manage to do it, as everything was fully booked. You can then park in Llanberies and take the Sherpa Bus S1 or S2 to Pen y Pass. The bus runs every half hour. From Pen y Pass, you can then choose the Miner's Track or Pyg Track. Have fun!
2
0
Right opposite the layby are the two main blocks - a good description and link to the topo is at https://www.climber.co.uk/outdoor/bouldering/around-the-bloc-the-cromlech-boulders-llanberis/ There are more higher up on the hill and you will find boulderars here at most times of the weather permits.
3
0
Frequently Asked Questions
How many mountain bike trails are available around Llyn Eigiau?
There are over 25 mountain bike trails in the Llyn Eigiau area, offering a diverse range of experiences for riders of all skill levels. These include 7 easy, 19 moderate, and 2 difficult routes.
Are there mountain bike trails suitable for beginners in Llyn Eigiau?
Yes, Llyn Eigiau offers several trails suitable for beginners. For instance, the Bridge Over Llyn Mymbyr – Llyn Mymbyr loop from Capel Curig is an easy 16.1 km route with gentle gradients, perfect for those new to mountain biking.
What are the typical lengths and durations of mountain bike routes in Llyn Eigiau?
The routes vary significantly in length and duration. You can find shorter rides like the Bridge Over Llyn Mymbyr – Llyn Mymbyr loop at 16.1 km (approx. 1 hour 11 minutes), to longer, more challenging rides such as the Capel Curig – Caernarfon Castle loop from Dolgam, which spans 72.5 km and takes around 4 hours 44 minutes.
Are there any circular mountain bike routes in the Llyn Eigiau area?
Yes, many of the trails in Llyn Eigiau are circular, allowing you to start and finish at the same point. A popular option is the Llyn Cowlyd and the Crafnant valley loop, a 27.5 km moderate route that winds through valleys and past reservoirs.
What is the best time of year for mountain biking in Llyn Eigiau?
The spring, summer, and early autumn months (April to October) generally offer the most favorable conditions for mountain biking in Llyn Eigiau, with milder weather and longer daylight hours. During winter, trails can be wet, muddy, and potentially icy, requiring more advanced skills and appropriate gear.
Can I bring my dog on the mountain bike trails in Llyn Eigiau?
Many trails in the Llyn Eigiau area are suitable for mountain biking with dogs, provided they are well-behaved and kept under control, especially near livestock. Always check local signage for any restrictions, and ensure your dog is fit enough for the distance and terrain.
Are there family-friendly mountain bike trails in Llyn Eigiau?
Yes, there are several family-friendly options, particularly among the easier routes. The Bridge Over Llyn Mymbyr – Llyn Mymbyr loop from Capel Curig is a good choice, offering scenic lake shores and relatively gentle gradients suitable for families with varying skill levels.
What do other mountain bikers enjoy most about Llyn Eigiau?
The Llyn Eigiau area is highly rated by the komoot community, with an average score of 4.4 stars from over 160 reviews. Riders often praise the diverse terrain, stunning mountain lake views, and the rewarding mix of ascents and descents across the Welsh countryside.
Are there any cafes or pubs near the mountain bike trails in Llyn Eigiau?
Yes, the area around Llyn Eigiau, particularly in nearby villages like Capel Curig and Betws-y-Coed, offers various options for refreshments. For example, the Llyn Ogwen and Ogwen Obelisk – Tu Hwnt i'r Bont Tearoom loop from Capel Curig passes by the Tu Hwnt i'r Bont Tearoom, a popular spot for a break.
What are some scenic viewpoints or hidden gems for mountain biking in the Llyn Eigiau area?
The entire Llyn Eigiau region is known for its scenic beauty, with numerous viewpoints offering panoramic vistas of mountain lakes and deep valleys. Trails like the Llyn Cowlyd and the Crafnant valley loop provide stunning views as you navigate through the landscape. Exploring the less-trafficked paths around the smaller reservoirs can often lead to quieter, hidden spots.
Is public transport available to access mountain bike trails in Llyn Eigiau?
Public transport options to the immediate Llyn Eigiau area can be limited. However, nearby towns like Capel Curig, which serve as starting points for several routes, are generally more accessible by bus services connecting to larger hubs in Snowdonia. It's advisable to check current timetables and routes in advance.
Where can I find parking for mountain biking in Llyn Eigiau?
Designated parking areas are available at common trailheads and in nearby villages such as Capel Curig. Many routes, like the Llyn Ogwen and Ogwen Obelisk – Tu Hwnt i'r Bont Tearoom loop from Capel Curig, often start from locations with parking facilities. Always check for any parking fees or restrictions before you arrive.
Most popular routes around Llyn Eigiau
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