GEOCACHING ON NATIONAL TRUST PROPERTY IS AT YOUR OWN RISK.
Also, please note that the National Trust is caring for the specialist habitats and landscape you enjoy on this and other caches on NT property, which is one of the reasons we are glad to be members.
Stage 3 - a more complex list puzzle
You will need all your fingers and thumbs for this one
N51 (9-1 first two).(25-1 last three) - 5
W000 (7-2 last two).(31-3 first three)
Here is a link to the hints pages, which will help you to solve the puzzle, and which you can click on if you get stuck.
Please replace the micro in its spot, and then put all of that in the big container!