sentences:  Pontygwaith today lacks many dwellings, but one notable exception is Pontygwaith Farm, located on the hill near the bridge, which offers tea room facilities.The gardens have occasionally been opened, for charity days, by the owners.The National Cycle Route 477 Taith Trevithick Trail heads up the east side of the valley from Pontygwaith to Trevithick's Tunnel - just south of Merthyr Tydfil, old stone sleepers can still be seen all around these trails on the east side of the valley where the famous tramroad ran.