Since there was little need to consider costs, the artificial strait was ultimately widened to over a hundred kilometers. The main channel alone was sixty to seventy kilometers wide, and even its shallowest point was over a thousand meters deep. Unless some great power deliberately damaged it, there would be no need to worry about silting for thousands of years.
With the route above opened up, the huge hole in the deep sea beneath the Red Line no longer had any value, leaving only its potential safety hazards.
However, after the repeated violent earthquakes caused by Horace's bombardment, that great hole had already completely collapsed. Mousse had indeed shown foresight by relocating the residents of Fish-Man Island in advance.
Yet Mousse, ever thorough in his considerations, still had Amon dive down and reinforce the collapsed structure beneath the Red Line. Opening up the Grand Line was only the beginning; the godlike feats with which he and his wife reshaped the world would not stop there.
First was Reverse Mountain, where the situation was similar. It had to be opened up as well. Since the couple and the Homies could all fly quickly, they completed that step the very next day.
But the Red Line was not the only obstacle preventing direct navigation between the major seas of the Pirate World. The Calm Belt, which had in fact caused even more deaths, was another. The lack of wind was no longer difficult to solve, but the threat of the Sea Kings could not be ignored.
Originally, Mousse had considered exterminating the Sea Kings entirely, those gigantic creatures that naturally threatened humanity. But now that he knew the Calm Belt also served as two breakwaters, he decided to spare those behemoths for the time being.
Thus, after connecting the Grand Line, Mousse