Gwennap's a civil parish and village in Cornwall, England, in the United Kingdom. It lends its name to Gwennap Pit where John Wesley preached between 1776 and 1789, although Gwennap Pit's to be found approximately 1.7 miles to the North West at the hamlet of Busveal near St. Day. The pit was caused by mining subsidence in the mid-eighteenth century. After Wesley's death the local people turned the pit into a regular oval shape with turf seats. In the eighteenth and early nineteenth centuries Gwe… (More on Gwennap)