TheNaunha Passages (Naunonga Passages)(11°35'S., 166°54'E.) are two openings in the barrier reef off the N side of Vanikolo Island. The W passage lies 0.3 mile W of Naunha Islet and has an unexamined shoal in its fairway. The E passage has depths of 12.8 to 16.4m, but there are some patches with depths of 8.2 to 9.1m. Vessels with local knowledge generally use the E passage.

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