The Gulf of Gdansk itself and fortifications and naval stations situated on its shores, and most of all hidden in its depths (sunk in the past) ships, vessels, mines, torpedoes and munitions have got another work about its history and historical objects. It is due to research actions of the authors under the supervision of the assistant professor Antoni Komorowski that the second edition of aHistorical treasures of the Gulf of Gdanska can be now presented to the public.