Coordinates are for a pay and display car park.
Find Marconi Factory to get clue A
Find Marconi Wireless to get clue B
Find Marconi Hut to get clue C
Geocache is at N 51 4(Bx3).A(B-1)(A+1) E 0 2(C+1).CC(C-1)
Cache has a pen and some room for trackable items
Location has been changed due getting muggled. Email if you need any help.
Adjustment needed please add 0.007 to North and subtract 0.032 from East.