Ascents
The first recorded ascent of Snowdon was by the botanist Thomas Johnson in 1639. However, the 18th-century Welsh historian Thomas Pennant mentions a "triumphal fair upon this our chief of mountains" following Edward I's conquest of Wales in 1284, which could indicate the possibility of earlier ascents.
Snowdon offers some of the most extensive views in the British Isles. On exceptionally clear days, Ireland, Scotland, England, and the Isle of Man are all visible, as well as 24 counties, 29 lakes and 17 islands. The view between Snowdon and Merrick (southern Scotland) is the longest theoretical line of sight in the British Isles at 144 miles (232 km).
Snowdon has been described as "probably the busiest mountain in Britain"; a number of well-established footpaths lead to Snowdon's summit from all sides, and can be combined in various ways. The circular walk starting and ending at Pen-y-Pass and using the Crib Goch route and the route over Y Lliwedd is called the Snowdon Horseshoe, and is considered "one of the finest ridge walks in Britain". The routes are arranged here anticlockwise, starting with the path leading from Llanberis. During winter, all these routes become significantly more dangerous and many inexperienced walkers have been killed over the years attempting to climb the mountain via the main paths.
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