(A) Colleagues, walking slowly across the river (photographed on 17 July 2004). They walked through the selected shallows of the river. A sandbank of the river seen in the left side of this photograph disappeared with increased water.

(B) A rubber boat, moving across the river, appeared suddenly after rainfall lasted from the July 20th noon to the 21th morning (photographed on 21 July 2004). This boat was running again and again along with a rope stretched between right and left banks of the river with increased water due to heavy rain. One colleague had to pull the rope backward strongly to make an advance of the boat containing at most two other colleagues.