In this case, it presents the millenary culture of the AMA, the divers who have been diving naked and with their lungs for centuries in the cold waters of the Sea of Japan to extract oysters, seafood, pearls and other seafood. Over the years, this economic activity gave way to a tradition marked by matriarchy and the values of respect for nature, solidarity and communion between women of all ages, ja who opted for the exclusive oral transmission, generation after generation, of the legacy of AMA knowledge and traditions.