An acquaintance explains how to go to the dacha:

Small (13:10:23 19/05/2011)
In general, you go to Riga and scratch right to Volokolamsk, the right post will be, you pass it, on the bridge (right after the post) turn to the right, but the main thing is not to pass, because it is just a hole in the fence in the middle of the bridge. You turn and drive straight down the main road to the rescue.

Sed@y (13:15:17 19/05/2011)
> because it is just a hole in the fence in the middle of the bridge
O_O