Today only commuter trains A and L stop at Pitäjänmäki station and are probably the most convenient way to reach this cache. The old station building is now the headquarters of a local newspaper.
Coordinates point to the station building. First determine how many platforms there are and proceed to the one that has the highest number (=A). From the platform you can admire a rather large piece of artwork that decorates the wall of an old cargo terminal. The number of art-students who constructed the painting is B. The company that sponsored the painting has C letters in its name. Painting consists of D clearly distinct pieces and the number of horses pictured in it is E.
Now study the train timetable. The number of L-trains departing from track 2 on Sundays is F.
Update on January 14th, 2016 - Due to vandalism I add the following hints:
B is an even number
Horses are present only on 2 adjacent pieces of artwork. To the right from drainpipe their number is 2.
E is an odd number (curse those vandals)
The final coordinates for the cache are
N60°13,xxx’
E24°51,yyy’
where
xxx = 848640/(A*B*C*D)
yyy = 39*(E+F)+2*C
The box is a ½ litre Tupperware.
This is a larva cache of Railway Station of Hämeenlinna