This is the staff used by the Traveling Wizard on his journeys. It is a powerful staff with a past even older than the wizard who carries it. This item has a past, and there is more to it than meets the eye.
To purify the water from a certain river the monks have carved a section of the river that goes over a stone bed. Through holy carvings of gods, godesses, and holy symbols and then the river flowing over them, it purifies the water making it safe for drinking and/or makes it holy water. For rivers that do not have natural rock bottoms, large smooth stones can be carved and added to the water to fully cover the bottom.