People throwing water on Buddhist statues. Apparently, someone(who has recently died)'s name can be inscribed on a wooden tablet and placed in the river (not allowed to take a picture of that) behind these statues. If you throw water on these Buddhas (the water will eventually flow onto the wooden tablets in the river), then that water will be transported to the person whose name is on the tablet, thereby making their trek through "hell" to reach "heaven" more bareable.