You can leave your vehicle near starting point. The crossroads of Vihdintie and Vanha Luukintie is at N60°19,204' E24°41,659'. Luukki bus-stop is also nearby. You can get here by bus 345 from Elielinaukio.
At given coordinates you'll find a sign.
Let longer distance on sign be A and shorter is B. C is the number of "r" letters on sign.
The second stop is at
N60°XXX'
E24°YYY'
Where
XXX = 3*A*B*C+2,207
YYY = 2*A*A*C-7*B+0,021
Final coordinates are written on the cache-note that is in 0,3 litre box. The final cache is a ½ litre box.