"Unless there is a successful appeal there is no legal way they can now enter the main body of this world," he says.
And so, onto Newhaven. Obviously... trees. Trees of rock, that is.
And in all varieties. The starport is built into a giant tree. But it's not only giant trees here; there are all sizes, from the huge ones that enormous buildings nest in, to ones much the same that you might see on any world, save their petrified nature. The upper streets are branches, and are in themselves full of trees.
The Dugs love this. Due to their unusual way of walking, they happily walk, as ever on their hands, dangling from an upper branch as they scamper along. For most other lifeforms, it's all rather inconvenient, but there is a decent transport system to get you from A to B.
And of course, you can go down to the surface, where the streets are just... streets. The starport does indeed have a surface exit, and it seems most non-Dugs make their way down here to follow their business.