Crimpiau from Capel Curig trail running loop — Parc Cenedlaethol Eryri / Snowdonia National Park

This moderate trail running loop around Crimpiau from Capel Curig offers a challenging yet rewarding experience, covering 3.9 miles (6.4 km) with an elevation gain of 818 feet (249 metres). You can expect to complete it in about 46 minutes. The varied terrain begins with woodland and bridleways, transitioning to a wilder, rockier landscape as you ascend towards Crimpiau. While paths are often well-trodden, be prepared for steep, rocky sections that can be loose underfoot, and potentially boggy areas after heavy rain, especially near wire fences. You will also cross stiles and a wooden bridge along the way. From the summit, you'll be treated to panoramic views of the Mymbyr Valley, the Snowdon horseshoe, and the Ogwen Valley, among others.

Planning your run requires a good level of fitness and sure-footedness, particularly given the steep ascents and descents. The trail's proximity to Capel Curig, a well-known hub for outdoor activities, makes it easily accessible for a quick escape into the mountains. While the route is considered a moderate jogging challenge, its varied surfaces, including unpaved paths and rocky sections, demand attention to your footing. This makes it a great option if you are looking for a significant workout with diverse scenery in a relatively short timeframe.

Crimpiau is often described as a