All four waypoints are inside red, pebbly fake rocks (designed to
fool Muggles, not cachers), usually next to a stump or tree, and no
more than a few metres off well-formed tracks.
Each waypoint has a puzzle question for you to solve, which will
give you values for A, B, C, D and E.
(You should take a pencil and paper or equivalent with you.)
The degrees and minutes of GZ are the same as the listed coords,
but you need to subtract the following numbers from the decimal
minutes of the starting coords.
South: subtract (A+B)
East : subtract (C-(D x E))
(e.g. if A=10 and B=20, then the GZ south coord would be 31°
57.788)
Or, to put it another way, GZ is at:
S 31° 57.(818-A-B) E 116° 03.(519-C+(DxE))
The final container is a 2.4l plastic box.
Find the codeword on the logbook and go to
bearleft.mackereth.net