This cache is a multi-stage challenge which will test your skills! You will need to take the following items; Wellington boots
Morse code
1/4" flat-bladed screwdriver
magnifying glass
2 AA batteries (working!)
notebook and pen
torch
AND YOU MIGHT WANT TO TAKE A PRINT OUT OF THE CACHE PAGE, INCLUDING THE DECODED HINTS!
The challenge includes entering a confined space (for a short distance), wading in shallow water (some of which is on slippery stone) and walking along a country road (for a short distance with no pavement), so is not suitable for unaccompanied children. 
The above co-ordinates are for stage one of the cache - you are looking for a six-digit number. Note these numbers and label them A-F. Use these to calculate the co-ordinates of stages two and four;
AT EACH STAGE YOU ARE LOOKING FOR THE LAST THREE DIGITS OF THE NORTHINGS AND WESTINGS
Stage two is at N A(E-A)(B-E) W B(A+C)E. There you will find the co-ordinates for stage three
At stage three you need to find and note the co-ordinates and instructions for stage four.