Jarkarr had no ocean because a few thousand years ago, the Boreas family had sunk all the oceans of the planet, bringing all those waters and the creatures inside of them underground.
All these were done in order to create enough land area for the production of Blue Iron.
Like the Underground Cities, there were only three continents and their names were the same as the cities because the Underground cities were named after the Continent.
Terribly unimaginative! Rowan thought, but he guessed there was little thought placed behind the names, after all the planet was just a resource center for the Boreas family, so the names of the Continent were also Trinad, Mrinah and Krakow.
The Continent they were presently on was Trinad, and it was the smallest of the three Continents. The other two were much bigger, but Rowan had a plan.