The three camps formed by the Indians are set up during the end of March and first days of April. The harvesting of the eggs is carried out in the regular way that characterizes all monastic institutions. Before the arrival of the monks up the river Indians profited far less from an abundant harvest supplied by nature. Each tribe dug in the beach wherever they felt like it and broke innumerable eggs because they did not dig carefully, and they unearthed more eggs than they needed. It was like amateurs exploiting a mine. Jesuit fathers have the merit of having regularized the exploitation, and although the Franciscans, who succeeded the Jesuits, boast that they follow their predecessors' examples they do not do all that prudence dictates. Jesuits did not allow the whole beach to be dug up; they kept a small part intact, for fear of seeing the race of arrau turtles destroyed or diminished. Today the whole beach is dug up. It has been noticed that the harvests are getting smaller and smaller each year.