Trigonometry.

A day off work and a walk out in the Leicestershire Countryside, although I might well have been over the border in Rutland at this point.

A lovely walk, just under ten miles, over some bright and breezy rolling landscape. The last part of the walk was through a Leicestershire and Rutland Wildlife Trust reserve and I spotted a bluebell that had grown up through an old oak leaf, not remarkable but it caught my eye, see the extra.