To find the physical location of this cache you must visit three locations on the estate to find the information you need.
The cache can be found at: N 55° 39.A31' W 2° 5.BC1'
At the stated coordinates you will find a building, from which you can find the first number for the final location and the coordinates for the second place you need to visit.
A = the number of letters in the fourth word of the plaque above the door
X/Y = This building was constructed in 1Y1X
Z = Number of letters in the first word of the plaque minus 1
The second stage can be found at: N 55 38.XYZ W 2 6.431
At the second stage coordinates you will find a number of signs, you need the 'Ford and Etal' Map sign, from which you can find the second number for the final location and the coordinates for the third place you need to visit.
C = the number on the map identifying Heatherslaw Cornmill
S = the distance between Heatherslaw and Etal is S mile(s)
T = there is a cycle route marked on the name this is route 6T
R = the seventh number of the phone number for Flodden Battlefield
The third stage can be found at:N 55 38.845 W 2 7.STR
At the third stage coordinates you will find some impressive military equipment,
B = the number of cannons at this location.
Please note the cache can only be accessed by foot or flying carpet, it can be approached from two directions but please ensure you stick to the marked footpaths. If approaching from the North - the blue rope in the woods should help.