+The Grand Line is a vast, perilous [ocean](/wiki/ocean) encircling a fictional world, famed for its unpredictable weather and unique magnetic anomalies. These strange forces render traditional compasses useless, making its [navigation](/wiki/navigation) a constant, treacherous challenge for all who attempt its journey.
+## See also
+- [World](/wiki/world)
+- [Piracy](/wiki/piracy)
+- [Exploration](/wiki/exploration)
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