Walking along the Neva River is something I enjoy very much. We did the same thing in August 2016 when we visited Russia. Many sailors, their girlfriends, wives and children roamed the area because it was the Navy Day. We waited until nightfall to give the two daughters a chance to see this bridge opening.
This is really a brilliant show. The opening and closing of bridges in St Petersburg. It Happens from April to November. There are altogether 12 bridges. The mainly cargo ships going along the Neva river to the Gulf of Finland. This last stretch of the canal was built during the Soviet Era.