SPOILER, ITEM LOCATIONS
Perpetuah, if you find the flippers at the top of the desert area (the one with the guy saying he isn't strong enough) you can swim to the bottom right corner of the ocean and find a pearl, bring the pearl to the first are to the left of the temple, and you'll get a detector to find any gems on the section of the map your on. Plus if you think this is helpful.
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