The scene is a desolate seashore, with the ruins of a Hindu temple in the background. A chorus of pearl fishermen sing of the dangerous tasks that lie ahead ("Sur la grève en feu"), and perform ritual dances to drive away evil spirits. They then elect one of their number, Zurga, as their leader, or "king". Nadir enters, and is hailed by Zurga as a long-lost friend. Left alone, the pair reminisce about their past in the city of Kandy, where their friendship was nearly destroyed by their mutual love of a young priestess whose beauty they had glimpsed briefly. They had each renounced their love for this stranger and had sworn to remain true to each other. Now, reunited, they affirm once again that they will be faithful until death ("Au fond du temple saint"). A boat draws up on the beach bearing the veiled figure of Leila, the virgin priestess whose prayers are required to ensure the safety of the fishermen. Although neither of them recognises her, she is the woman from Kandy with whom Nadir and Zurga had been in love. As Zurga is explaining her duties, she recognises Nadir, but she says nothing and shortly afterwards is led up to the temple by the high priest Nourabad. Zurga and the fishermen go down to the sea, leaving Nadir alone. In a troubled soliloquy before he sleeps he recalls how, in Kandy, he had broken his vows to Zurga and pursued his love for the veiled woman ("Je crois entendre encore"). It was the rumour that she might be found in this place that brought him here. Alone in the temple, Leila prays and sings. Nadir wakes and, recognising the voice of his long-desired lover, traces it to the temple. Leila briefly draws her veil aside, he sees it is she and the pair declare their renewed passion. On the beach, the fishermen plead with her to continue protecting them, but she tells Nadir she will sing for him alone ("O Dieu Brahma").