This is a very famous religious site here in Cornwall. This is Gwennap Pit. Where Matthew is standing is where John Wesley preached to thousands of ordinary Miners (tiners) who had walked from the surrounding Tin mining area to hear him preach. He came not once but 18 times between 1762-89 the highest number at one time was suposed to be an amazing 30 thousand!! The tinners were impressed that he wanted to share the Good News of the Love of God with such ordinanary people. This natural hollow was set in formal circles after Wesley's death as a memorial by the local Mine Captains in 1806.,