Surfers paint their bodies to take part in the ritual Das Águas Auera Auara, a baptism ceremony for Pororoca surfers, during the Amazon Surf Festival held in the Canal do Perigoso, or "Dangerous Channel," at the mouth of the Amazon River near Chaves, Marajo Island archipelago, Para state, Brazil, Monday, June 5, 2023. The Pororoca, a word from an Amazonian Indigenous dialect that means "destroyer" or "great blast," happens twice a day when the incoming ocean tide reverses the river flow for a time. (AP Photo/Eraldo Peres)