Please click here for more information. Big Pit: National Coal Museum Pwll Mawr, Blaenafon, Blaenau Gwent Big Pit is a real colliery. It was the place of work for hundreds of men, women and children for over 200 years - a daily struggle to extract that precious mineral that stoked the furnaces and lit the household fires of the world.   Accommodation and Events There's a good choice of quality assured accommodation and often events in the area covered by the map below. About our location: Follow the signs from the A465 and the M4 (jct 26 eastbound and jct 25 westbound)     Reset Map Position Admission Special offer Adult price Free Child price Free Family price Free Concessions Free Opening Hours: March - November: 9.30am - 5pm, Underground tours   Facilities: Free coach and car parking, Gift shop with souvenirs and publications, Events throughout the season, Education work packs, Allow at least 2 and a half hours for your visit. Going underground... Kitted out in helmet, cap-lamp and battery pack, you descend 300 feet (90 metres) to another world; a world of shafts, coal faces and levels, of underground roadways, air doors and stables. On the surface... Returning to the surface, the colliery buildings, the winding engine-house, the blacksmiths workshop and pithead baths complete the picture of a working pit that at its height employed 1,300 men.   Big Pit: National Coal Museum Pwll Mawr, Blaenafon, Blaenau Gwent  NP4 9XP Telephone +44 (0)1495 790 311 Website	Accommodation Beaches Events Restaurants Click on the channels above to get information on areas covered by the zoomable maps.