Boltenhagen (GS09[citation needed]) was a Kondor I-class minesweeper built in East Germany.

She rejoined her sister ships Ueckermünde and Pasewalk which were purchased by Malta back in 1992 and were given the pennant numbers P30 and P31.

She was cleaned and then was scuttled on 14 August 2007 off the port of Ċirkewwa to serve as a diving site and artificial reef.

Since it was quite recently sunk compared to MV Rozi and other wreck sites in Malta, it requires some time to attract a good amount of marine life inside and around it.

However, since its sinking, Alicia mirabilis, squid, flying gurnards and rays have already started settling on the former patrol boat.