Up the North Ridge of Tryfan and down to the coll. The weather had deteriorated so the team didn`t feel confident to do Bristly ridge in the current conditions so we opted for the footpath to the East. In Summer this is a scree stone shoot and in winter it is not much better. We faught up it and headed to the Canterlever, Glyder Fach and Glyder Fawr before heading down Y Gribin.