Basic waterway St.-Petersburg. On its coast Peter I has put one of the most beautiful cities of the world. Neva — the river unique: in spite of the fact that it short enough, by quantity of moved water enters into ten the largest rivers of a planet. It is navigable on all extent. With Petrovsky times through Neva tens ferries and crossings operated, were directed pontoon and pontoon bridges. The first constant bridge — Blagoveshchensk — has been constructed only at Nikolay I.