2026-06-06 Dul Hranicna

First dive at Důl Hraničná in the Czech Republic.
An old iron ore mine in the Rychlebské hory, with mining history going back to the mid-19th century and production ending in 1968. Today it’s flooded, cold, quiet, and used for mine and cave diving.
The water is around 8°C all year, with good visibility, and the black magnetite running through white marble gives the place a very special look underwater.
First visit, and a really interesting one. A serious dive site, full of history and atmosphere.

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References:
[1] Důl Hraničná, Mine Diving CZ, https://www.minehraniczna.cz/
[2] Historie, geologie, Mine Diving CZ, https://www.minehraniczna.cz/historie.html
[3] Důl Hraničná, Město Javorník, https://www.mestojavornik.cz/zivot-ve-meste/turistika/dul-hranicna/
[4] Šachta Hraničná - popis, HP Diving, https://www.hpdiving.cz/clanky/sachta/sachta-hranicna.html