There are two options to tackle Pen Yr Ole Wen. The first route from the Youth Hostel is the most challenging; a steep, technical and scree-filled ascent to the 3,209 feet (978 metre) high summit. The second more comfortable trail starts at the Glan Dena Llyn Ogwen. Unfortunately, there is no easy option. Once you make it to the summit, though, prepare to be impressed with magnificent views over to Tryfan and the Glyders.