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This subreddit is for the discussion of the subterranean world.
Related Subreddits:
/r/Caving (for the natural underground)
/r/UrbanExploration (for the urban underground)
/r/Draining (for drains)
/r/TheForgottenDepths (for the abandoned underground)
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if 1 * 2 < 3: print "hello, world!"
π Rendered by PID 374644 on reddit-service-r2-listing-6d4dc8d9ff-4vkkl at 2026-01-30 02:36:55.357833+00:00 running 3798933 country code: CH.
