The coordinates point in front of a firewood shed near Holma-Saarijärvi lake. You may use the wood and camp here.
Shed is made of round logs. When stading about 10 meters from the doorway and watching the shed, count how many log-ends point to your direction. Let their number be A.
Cache-box is located at
XXX = 452,04/A
YYY = 732,71/A
The box is a ½ litre Tupperware.