Within each kamakura there is a snow altar dedicated to the water deity, to whom people pray for ample water. A charcoal brazier is set up to provide warmth and grill rice cakes. In the evenings (18:00 to 21:00), children invite festival visitors into their kamakura and offer them rice cakes and amazake, a type of warm sweet rice wine with zero or very low alcohol content. In return, the visitors make an offering to the water deity at the altar.