Wayland's Smithy is an excellent chambered long barrows in Britain and lies a short walk from Uffington White Horse and Uffington Castle. It was built in two periods around 3700 and 3400 BC; only the second stage is now visible with impressive sarsen stones at the entrance and a massive, well defined long barrow. All this is set in a tranquil, beautiful location surrounded by beech trees.
Wayland's Smithy got it's name from Saxon tradition; the Saxons named it after the Saxon god of metal working. More information can be found at this web site.
This cache is hidden away from the sensitive site of Waylands Smithy itself.
There is a choice of parking. You can park at Uffington White Horse car park which has excellent views and is a much better car park, and also visit the cache at that location. Alternatively you could cache and dash at N51°34.103', W01°35.402'.
Please check out the Geocaching Association of Great Britain offering support for Geocachers in GB.