Using the information board, put these events in chronological order, from earliest to latest:
a. "Glinton Artesian Water Company" formed.
b. 6,000 bottles a week.
c. Exhibition at East of England Showground.
d. Factory buildings are demolished.
e. Grand opening of the grotto.
f. Peterborough City Council landscapes the site.
g. Peterborough Corporation sinks 4 boreholes.
h. The new footbridge is built.
i. Two gold medals are won.
and number the events in order from 1 to 9, to give you the letter values you will need to work out the co-ordinates. (So, if the first events were d, a, b, ... then it would be d=1, a=2, b=3 .... )
You'll find the cache at N52 3d.fah W000 1i. (c+b) (b+e) a.
Please be stealthy - if you can!
If you want to be sure, you can check your co-ordinates with this GeoChecker..
(The cache is just a few minutes walk from here, in a quiet spot.)