"Oh, The grand old Duke of York,
He had ten thousand men;
He marched them up to the top of the hill,
And he marched them down again.
And when they were up, they were up,
And when they were down, they were down,
And when they were only half-way up,
They were neither up nor down."
Work out the numbers to complete the co-ordinates.
The cache (a magnetic nano - sorry) can be found at:
N 54 56. I'm working for the black gas / If I lay here, if I just lay here / They don't make no bandage that's going to cover my bruise
W 001 35. A moon full of stars and astral cars / You don't need me to show the way / Then she lit up a candle and she showed me the way
You can validate your puzzle solution with certitude.