Latest update: Aug 23, 2007.
Plaque number 1 has a picture of a mammal in it. Let the number of letters in its Finnish name be A.
Plaque number 2 is missing. Consequently is variable B also missing.
Plaque number 3 presents some plants. Let the number of different plant species pictured in it be C.
Plaque number 4 presents a mammal species. Let the number of mammals pictured in it be D.
Now keep walking onward along the nature trail and keep an eye on plaques until you find one that pictures plants Vanamo, Metsätähti and Oravanmarja. Let the number of that plaque be E and the number of Metsätähti flowers pictured in it is F.
Cache is hidden at
XXX = (A*A*C*D)/8,441
YYY = (E*E*F)/12,256
The box is ½ litre Tupperware.