On August 24-25, 2015, the Baltictech team conducted a series of dives to the depth of 80m near Hel. Originally, the members of the expedition wanted to confirm the u-boat as U346, which was found by Wojtek Jechna in 2013.
After a thorough analysis of the films and photographs taken during the dives, the technical details of the ship's construction ruled out the U346.
At the bottom of the Baltic Sea, at a depth of 80m lies the U670, a VIIC class u-boat that sank on August 20, 1943 during night training.