The Snowdonia Trail Marathon Eriri, which starts from Llanberis, a mountain village in northern Wales,
in the heart of Eriri (Snowdonia) National Park, is considered one of the leading mountain running competitions in the UK.
This competition, hosted by Always Aim High Events and held in conjunction with the
Course was designed in the form of a large loop around the Yr Wyddfa (Mt. Snowdon) Massif, the highest mountain in England and Wales.
Starting from Llanberis, you pass through Rhyd Ddu, Beddgelert, Nant Gwynant, and Pen y Pass in succession.
The long-distance course actually includes a section that climbs to the foot of Mount Snowdon,
allowing you to enjoy panoramic views of the lakes, valleys, and ridges of Eriri National Park.
The Eriri region has long been called the mecca of British mountain marathons,
and the mountain running competitions held in this area are said to be continuing the tradition of being selected as 'Britain's best marathon' in a reader poll for the UK version of Runner's World.
However, this XTERRA Snowdonia Trail Marathon Eriri (held in July) should not be confused with the traditional 'Marathon Eriri' (formerly Snowdonia Marathon),
which was founded in 1982 and is held every October.
Due to the combination of the rugged terrain and the unpredictable weather in the Welsh mountains,
completing the race itself is considered an achievement, and Llanberis,
where finish is located, is full of the unique energy of mountain marathons throughout the competition period,
as it is the village of cut-off point for climbing Mt. Snowdon.
