description Hranice Abyss Overview
Hranice Abyss is a flooded karst sinkhole in Moravia, Czech Republic, confirmed by robotic survey in 2016 to exceed 404 m, making it the world's deepest known freshwater flooded cave.
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How good is Hranice Abyss?
Hranice Abyss scores 8.05/10 (Great) on Lunoo, making it a well-rated option in the Sinkhole category.
What are the best alternatives to Hranice Abyss?
See our alternatives page for Hranice Abyss for a ranked list with scores. Top alternatives include: Sarisarinama Sinkhole – Humboldt Pit (Sima Humboldt), Blue Hole of Dahab, Sarisarinama Sinkhole – Martel Pit (Sima Martel).
How does Hranice Abyss compare to Sarisarinama Sinkhole – Humboldt Pit (Sima Humboldt)?
See our detailed comparison of Hranice Abyss vs Sarisarinama Sinkhole – Humboldt Pit (Sima Humboldt) with scores, features, and an AI-powered verdict.
Is Hranice Abyss worth it in 2026?
With a score of 8.05/10, Hranice Abyss is highly rated in Sinkhole. See all Sinkhole ranked.
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