Dragon Ball Super Manga Chapter 79
Character Synopsis
The port is in terrible shape and Bulma thinks they should leave, but Kuririn doesn't want to let Goku die. Bulma shouts that her own life is the most important thing in the world to her, and Kuririn weakly agrees. Bulma thinks that Goku will be fine, and as they prepare to dive, Kuririn notices Goku coming. He runs through the harbor and a rock falls on his head, but he keeps going and is called to the submarine.
The submarine dives down and the fallen rocks are everywhere. Goku pulls the mouse out of his mouth and is glad it's okay. The water is even more cluttered with rocks and Kuririn screams that the entire cave is collapsing. They are excited to get into the tunnel that leads back into the ocean until the submarine runs out of gas.