The cache is not at the posted coordinates. At the posted coordinates you will find an abstract metal sculpture from 1967 by the artist Krystyna Sadowska. It is also the location of one of my earliest finds, now archived, of course.
On the sculpture you will find grouped together roughly rectangular-shaped pieces of two different sizes, like this.
Count the number of larger rectangles, divide by 1000 and add to N 43 36.755
Count the number of smaller rectangles, divide by 1000, and add to W 79 37.458
Figured it out? Now go find it!