Yes, the Besucher-Bergwerk & Museum Kleinenbremen has it all. The mining area (the Bergwerk part of Bergwerk & Museum) includes a guided tour in German. Get close to former worker areas, tools, and transport. The tour ends at an underwater lake, the Blue Lagoon.
The museum part of the name includes information about mining history. They also have exhibits of some of the geological and archaeological finds from the area.
Sturdy shoes and warm clothing are recommended for underground tours.
This site is open seasonly, check the website for dates and times.
Photo credit: rainerbuesching
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