2026-06-07 Maria Concordia

Next day, another mine dive: Maria Concordia.

An old flooded magnesite mine near Sobótka in Lower Silesia, Poland, built around 1920 to 1921 and later turned into a serious technical and cave diving site.

Access to the water starts with a descent roughly 40m down the shaft, which already makes it clear this isn’t a normal dive site. Underwater, the mine has clear water, irregular corridors, several levels, and beautiful magnesite veins in the walls.

Different mood than Důl Hraničná, but just as interesting. Dark, quiet, raw, and full of history.
#MariaConcordia #MineDiving #CaveDiving #TechnicalDiving #DivingPoland #Sobótka #LowerSilesia #MagnesiteMine #UnderwaterPhotography #Nauticam #SonyA7C

References
[1] Maria Concordia, Submerged Foundation, https://submergedfoundation.org/maria-concordia-mine-poland/
[2] Maria Concordia 3D, XDEEP Exploration Support Program, https://exploration.xdeep.eu/projects/maria-concordia-mine-3d-scanning-project
[3] Ciekawa historia Kopalni Maria-Concordia, Podcast Spod Wody, https://spodwody.pl/ciekawa-historia-kopalni-maria-concordia-pawel-myslinski/
[4] Schicht im Schacht, TAUCHEN.de, https://www.tauchen.de/reise/schicht-im-schacht-spektakulaeres-tauchen-in-der-mine-maria-concordia/
[5] Maria Concordia, skrytý svět potápěčů v Polsku, Skryté světy, https://www.skrytesvety.cz/reportaze/maria-concordia-skryty-svet-potapecu-v-polsku.html