Wash and sort the blueberries. With the exception of a few beautiful specimens, place in a bowl. Add the water and yogurt. Mix with the hand blender to a creamy liquid. Pour the smoothie into the chilled glasses and garnish with the remaining blueberries. Serve immediately.
If you don`t have fresh blueberries on hand, you can just as easily use frozen blueberries. They should just be thawed, but still freezing cold.