Why can't I see the turtle's body?

Whether at the seaside or under the sea, few people find the bodies of turtles. Is it because they are immortal? No. It is said that turtles, like elephants on land, can know in advance when they will die, so they will look for their graves. They found the cave, climbed in through the hole, crossed a long passage, arrived at the spacious cave, and then lay quietly. Until death. A Japanese photographer and three divers found a turtle cemetery in a 25-meter-deep underwater cave in Bataan, Malaysia, where about 30 turtles and tortoises were scattered.