Are defined as a chain of glacial lakes where each lake flows into the next.

A Pater Noster lake is a type of lake that is part of a series of glacial lakes that are connected by a single stream.

Its name is due to its connection in series reminds the beads of a rosary, an element used to perform prayers, among which is the Our Father (Pater Noster in Latin)

It should be noted that this type of lakes originate from the irregular erosion of a glacier along its weakness zone.