Back in the past this block surrounded by Neva and Fontanka rivers and two streets was occupied by the laundries serving Winter Palace needs and people who worked there. Today it is a residential block sharing the yard with the Minor Academy of Arts whose pupils and teachers inlaid a part of the yard with mosaics.
Cache coordinates lead to the entry into the block. That entry is always open, but there are a few more passages which may or may not be open.
Point 1
At the point N59 56.840 E30 20.333 you will find a fountain and a mosaic clock. X is the biggest number on the clock dial. In case if clock is not visible, count the total number of benches around the fountain, multiply by 2 and add the number of sun rays on a mosaic image of a man holding the sun in the palm of his hand nearby.
Point 2
From the clock location you can see a wall with wild geese. Most of them carry a boy. Y=those birds which are free from that sort of cargo.
Point 3
At the and of the geese wall you'll find a big company of small creatures sitting on the ground. They have small wings and red backs. Z= the number of creatures.
A small canister is hidden under an iron ladder closest to the point N59 56.8(Z*Y+8) E30 20.2(X*4+7). In case if the cache is stolen, bad luck, but this happens. Please report the missing cache in the log.
No matter if you find the cache or not, you can pass through the door in the closest iron fence, find the gates with two holes and enjoy the Neva panorama through the holes.