Six students went to the Nanlong Reservoir yesterday and fell from a floating wooden plank into the water, Jieyang City official said.
Two of the students made it back to shore, but four of the teenagers, three boys and a girl, were found by rescuers and pronounced dead at the scene.
The college entrance exam, "Gaokao," fell on Tuesday and Wednesday this year, with a total of 9.4 million Chinese students competing for university admission.