Challenging puzzle for experienced crossword solvers
Enigmatic Wonders of Oceanic Depths
Moderate difficulty suitable for most players
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Across
- 1. Short form for light emission caused by ocean organisms (common in scientific contexts)
- 3. Highly saline water pocket sometimes found on the ocean floor
- 5. Powerful, swirling ocean whirlpool, famously featured in folklore
- 6. Rare optical phenomenon caused by ice crystals over the ocean
Down
- 2. Massive increase of microscopic algae in ocean waters
- 4. Dense atmospheric phenomenon often seen over cold ocean waters
- 7. Process where cold, nutrient-rich water rises to the surface
- 8. Strong current caused by tides flowing quickly offshore
- 9. Seismic sea wave triggered by underwater earthquakes or eruptions
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