Plas Tan y Bwlch

It is located approximately 6 miles (9.7 km) east of the coastal town of Porthmadog, overlooking the valley of the River Dwyryd and the village of Maentwrog.

The centre provided courses about the Snowdonia National Park and the surrounding region of Wales.

Plas Tan y Bwlch is thought to be the first house in North Wales with electric lighting powered from its own hydro-electric station, which was commissioned in the 1890s.

It ceased to operate soon after 1928, when the public hydro-electric power station at Maentwrog began supplying the area.

The water falls 60 metres (200 ft) to the turbine, and the scheme is expected to meet most of the Plas' electricity needs.