If you’ve taken on the Tarw Du trail at Coed-y-Brenin you will have been faced with Y Slab, a series of large rock slab rolls.
If you took on the Tarw Du trail but couldn’t master Y Slab, then this video by the guys at PedalMTB should help you shred it next time you’re in North Wales.
Check out the Coed-y-Brenin’s Tarw Du black-graded trail here.