The Light and Shadow Zone didn't have a portal, so the trio had to teleport to the nearest Dark Zone 10 and then walk from there. It was said to provide a buffer zone to prevent large-scale riots between the chaotic and orderly factions.
The difference between chaos and order lies in whether or not one cares about the impact on their surroundings. Whether it's a good or bad deed, the orderly side will always consider the consequences for themselves before deciding on their behavior. The chaotic side acts on impulse.
Dark Zone 10 is a crystalline area within a massive crystal, and the occasional sunlight that shines upon this strange crystal leaves rainbow-colored auroras in the sky above.
