Liu Shiqing signaled, using the scuba diving hand gestures he learned during his training, indicating he was going to dive deeper. Shen Jiuqiang and others hurried to follow. Shen Jiuqiang's experience was slightly less intense, being a first-time diver himself in the East Sea, yet the experience of Chen Junhui, Tao Hentian, and the Zhoushan Base divers were different. They had dived in the severe cold of winter before, and although diving suits had a certain insulating function, they would still feel cold after long periods of activity in the icy ocean. Bizarrely, several minutes after diving in, they were still feeling warm.