The week before the feast of the Virgen del Carmen, the past, present and future of Illa de Arousa converge in "la seca". At low tide, we meet Carmen and Monica, two generations of shellfish gatherers. Their stories of nostalgia and joy come together along the path of Monica's daughter, Tania, one of the last young women to enter the trade. With each change of tide, the shore reveals the memory of a matriarchal tradition that lives on in those who keep it.