![[Photo: Navigators charted sailing directions]](4234_ocean_swells_interpretive_text.jpg "Navigators charted sailing directions")
Marshallese navigators used charts like the one above to teach sailing directions for a specific voyage. By studying the chart, a wayfinder could learn an island's position amid the possible patterns of ocean swells. This chart represented the patterns of swells between Majuro and Jaluit atolls.
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