The Baltic Sea anomaly was discovered while the OceanX team was treasure hunting on the floor of the northern Baltic Sea.
Notes on verification
Multiple independent sources (ExplorersWeb, HowStuffWorks, Marine Insight) and the team's own account corroborate that the anomaly was found incidentally during a treasure/shipwreck hunt in 2011. [cascade flags: aggregator_dropped_primary_exists | tier=unverified indep_score=0.3 clusters=3 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]
Sources
- Baltic Sea anomaly (wikipedia)
- https://www.marineinsight.com/maritime-history/the-baltic-sea-mystery-of-the-strange-ufo-object/ (corroboration)
- https://explorersweb.com/is-the-baltic-sea-anomaly-natural-man-made-a-hoax-we-explore-the-possibilities/ (corroboration)
- https://www.gofundme.com/f/ocean-x-team (corroboration)