Covid-19 - getting back outdoors
All of our groups are now able to offer events. In England and Wales, up to 30 people (including the organiser) may attend each event. In Scotland a maximum of 15 people, from a maximum of 5 households may attend.
Groups may choose to implement a booking system for their events, or revert to the standard "attendance" system. Everyone attending an event will be required to provide their name and contact details to the event contact for Track and Trace purposes.
Local restrictions may affect any events at short notice, please be aware that some last minute cancellations may be neccessary. Registering your attendance on an event, and ensuring that your profile is set to allow general messages from GOC, will ensure you can be informed of any last minute changes.
Somewhat overshadowed by the giant Dinorwig Quarry which towers above the village of Llanberis, there are also major quarry remains on the low mountain of Cefn Du. The Glyn Rhonwy Quarry is dug into the hill from lake level to the very top of the mountain. Massive tectonic forces, during the ancient collisions 400 million years ago that built the mountains of Snowdonia, have shoved the Glyn Rhonwy Quarry one kilometre further north-west from the Dinorwig Quarry. Nowadays the Glyn Rhonwy is largely hidden from view by trees, unlike the conspicuous Dinorwig Quarry but a wlak through the old quarries reveals their vast effect on the landscape. Cefn Du was also the site of the antenna used by Guigilemo Marconi a century ago to transmit the first transatlantic wireless transmissions and some remains of the antenna can still be found in the summit area. The summit area also offers stupendous views of the mountains of Snowdonia and towards Anglesey. Thus, this walk combines fine walking, great views and a wealth of industrial archaeology.
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