This video is from one dive to shipwreck of Russian cruiser PALLADA.
Pallada (Russian: Паллада) was the last of the four Bayan-class armored cruisers built for the Imperial Russian Navy in the first decade of the 20th Century. She was assigned to the Baltic Fleet during World War I where she captured codebooks from the German cruiser Magdeburg that had run aground during the first month of the war. The ship was torpedoed by a German submarine in October 1914 and exploded; none of the crew survived.
More info en.wikipedia.org/wiki/Russian_cruiser_Pallada_(1906)