A trading capital of the continental map I posted here: Xillihav. Olenis is within the Olene Lowlands which is a human-dominated territory-region. They do not let the "lesser sub-species" within their great cities or lands for fear of contamination - so Olenis is a human zone. The weird little bit coming off the bottom right, near the docks, is a sandbar. And yes, at the top, that is a wall going all the way to the island. They're attempting to make their city as defensible as possible. (I understand that building a wall out like that may be unlikely but it would look so cool if this were real that I couldn't resist.)

As for the second set of docks on the island, those are the military docks; they're close to the opening into the port so that they can defend more easily in case of an attack.

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