The big one. El gordo. The site that I had promised myself that I would explore before the end of 2013. An ambition fulfilled – and then some. When Matthew Adams of the excellent Unexposed Exploration (follow his page, it’s all sorts of ace) kindly offered to lead on what would be his 20th visit to Sevs, Kubix_UK and I needed no persuading. Apparently Matthew’s first two visits to Sevs lasted 24 and 28 minutes respectively due to the prowess…