K-129 Shipwreck

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K-129 was a Project 629A (NATO reporting name Golf-II) diesel-electric powered submarine of the Soviet Pacific Fleet, one of six Project 629 strategic ballistic missile submarines attached to the 15th Submarine Squadron based at Rybachiy Naval Base, Kamchatka, commanded by Rear Admiral Rudolf A. Golosov.

In January 1968, the 15th Submarine Squadron was part of the 29th Ballistic Missile Division at Rybachiy, commanded by Admiral Viktor A. Dygalo. K-129's commander was Captain First Rank V.I. Kobzar. K-129 carried hull number 722 on her final deployment in which she sank on 8 March 1968. After sinking, the Soviet Navy never found her wreck. The United States attempted to recover the boat in 1974 in Project Azorian, a secret cold war-era plot to raise a vessel from greater than 3.0 miles (4.8 km) below the surface of the Pacific Ocean with the cover story of commercial manganese nodule mining.