Please see number 1 in the series (Are you a square?) for a full description of the walk, there is street parking available in the village of Weald.
The cache is not at the posted coordinates.
The final location can be found once puzzles 9 to 16 have been solved
9. The Triangle Within N51 13.aXX E000 09.YhY
10. Simple try angles N51 12.XXX E000 09.eYY
11. Stacked triangles N51 12.XXX E000 09.YYf
12. Complex stacks N51 12.XXX E000 09.cYY
13. Hexed N51 12.dXX E000 09.YgY
14. Single rectangles N51 12.jXX E000 09.YYY
15. Layer Cake N51 12.XXb E000 09.YYY
16. When is a square a puzzle? N51 12.XXk E000 09.YYY
The cache can be found at N51 ab.cde E000 fg.hjk
*** Congratulations to -KROP- on FTF ***