MV Rozi was a tugboat, built in Bristol in 1958. She was originally called Rossmore, and was later renamed Rossgarth. She was sold to Tug Malta in 1981 as the Rozi and operated in the Grand Harbour. After being decommissioned, in 1992 she was scuttled off Ċirkewwa as an artificial reef. It is now one of the most popular dive sites in Malta.

(source Wikipédia)

Boltenhagen (GS09) was a Kondor I-class minesweeper built in East Germany. After the Volksmarine was disbanded just before the reunification of Germany, she was sold to Malta in 1997 and renamed P29 and was used as a patrol boat. After being decommissioned, she was scuttled as a dive site in 2007 off Ċirkewwa.

(source Wikipédia)