At stage 1 (a virtual stage), you'll find a bench. There's a plaque near it with the names Igor and Agnes.
Look for the number of years.
Final is at: N 44 58.(861 + # of years) W 093 11.(546 - # of years)
(This cache is registered with the city of St Paul)
Frnepu gur zbfg boivbhf ornpba ng gur svany.