Noah's awareness sent mixed messages as he flew above the surface of the sea. He was in the areas west of the new continent, and he would reach the eastern coast of the old one if he continued in that direction.
According to God's Left Hand's map, the tunnel was somewhere in that part of the sea. The fall of the piece of Immortal Lands had changed the seabed's layout, so Noah had to explore a bit.
His consciousness couldn't quite perceive the amount of danger hidden in the depths of the sea. The fauna there had innate hiding capabilities, and the dense waters at the bottom helped in covering the presence of powerful creatures.
There was a chance that Noah wouldn't be able to sense certain species specialized in ambushes, but his instincts would cover for most of the fauna. He was still a hybrid. There weren't many creatures capable of catching him by surprise.
