"This angle... approximately 8 to 10 degrees... due north... shifting east by 8 to 10 degrees..."
Lin Yu'an picked up a pencil and drew a range on the map of the Mouth of the Whale's rocky mountain.
"The Mouth of the Whale is not an isolated rock mountain! Its eastern side connects to a vast, labyrinth-like Mangrove Swamp!"
"And at the edge of the mangrove, there's the only main waterway that allows small boats to pass during high tide! The entrance to this waterway, relative to the Mouth of the Whale's position, is precisely about 10 degrees east of north!"
"Thus, by perfectly interlinking all the clues, the ultimate answer to the entire puzzle is—"
"At the lowest tide of the New Moon Tide, first find the Mouth of the Whale. Then, using it as a reference point, navigate along the direction approximately 10 degrees east of north to enter the only main waterway of the mangroves!"
