My 10k Quest
In 2013 I completed a visit to every 10k square in Scotland - I believe I am the only person to do this. In total I visited 1086 specific squares, based on the OS grid. I had thought that I had completed this quest in 2012 but 'discovered' 2 islands that I thought were uninhabited...but they had one resident!
Here is a link to an article in the Scottish national paper which describes my travels