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Title
The abyss Stäubiloch Staeubiloch or Staubiloch of Lake Melchsee or a cave by Lake Melch, Melchtal - Switzerland #194457027
Description
The abyss Stäubiloch Staeubiloch or Staubiloch of Lake Melchsee or a cave by Lake Melch, Melchtal - Canton of Obwald, Switzerland / Kanton Obwalden, Schweiz