The Grand Line, a region within the Western Luminaries that divides the Luminant into two halves: a northern half and a southern half. The Grand Line is a multilayered blockade; it starts with the Calm-Sea on either side. Within these parts, wind becomes nearly non-existent; however, aquatic life activity heavily increases, making prolonged travel in this area dangerous. After the Calm sea is a layer of the Void-Sea, a region where the pull is greatly amplified, which causes navigational devices to fail and strange phenomena to occur. Often, small anomalous storms plague the area. Once both of these layers are crossed, the traveler has entered the Grand Line, a large region with hidden land masses and species typically inaccessible to Lumen. Within this region, most typical laws of geography and magic are violated.
