A floating drilling rig on a pontoon raft on the Vodootvodny Canal, on the Bolotnaya Embankment side, between the Patriarshy Bridge (closed) and the Maly Kamenny Bridge
A floating drilling rig on a pontoon raft on the Vodootvodny Canal, on the Bolotnaya Embankment side, between the Patriarshy Bridge (closed) and the Maly Kamenny Bridge. What are they drilling for? I have grown curious.


