ORP Delfin (Puck Bay)

Delfin is a former minesweeper built in New York in 1942, handed to the Polish Navy by the British in 1948 and sunk in 1957 as a training vessel. It is about 42 m long, slightly heeled, with the bridge at about 13-14 m and the seabed at about 20-21 m. The official list gives 13.9 to 21.0 m. Its open gallery is considered safe, but interior silt kills visibility quickly.

Facts

• Region: Poland – Baltic Sea Wrecks (Gulf of Gdańsk & Pomerania)
• Area: Gulf of Gdańsk (Hel, Jastarnia, Gdynia, Rozewie)
• Depth: 14–21 m
• Level: intermediate
• Current: low
• Type: wreck
• Coordinates: 54.64783, 18.60311
• Highlights: 42 m minesweeper, tilted hull, open gallery
• Tips: Do not enter the interior without proper wreck training and a guideline: an exploring diver died here in 2020 after entering without a line, per a press report. The Maritime Office also recommends not penetrating wrecks.

Sources

• https://www.umgdy.gov.pl/wp-content/uploads/2026/07/1_DUM_Lista_wrakow_udostepnionych.pdf
• https://www.gdansktrips.com/wreck-diving-in-baltic-sea/
• https://pomorskie.travel/en/articles/diving-in-the-baltic-sea/
• https://www.umgdy.gov.pl/wp-content/uploads/2020/01/PM_zalecenia_bezp_pletwonurkowanie.pdf
• https://www.scubaboard.com/community/goto/post?id=9158050