Iaia

Iaia, according to Last riders, was the original world of the infamous Dragon Riders, before they were brought to Gielinor by the god Zaros, whose service they had entered into for the promise of a cure for their race's infertility. Little is known about the realm itself, except that it possessed three moons and no stars in the sky, and consisted partially of marshland. It was also a peaceful world, with there being no 'enemies, threats or lies'.

Besides the Dragon Riders, this was also the homeworld of the gurhs, which acted as the Riders' mounts and companions before the dragons of Gielinor. When the Riders followed Zaros, the gurhs were left behind, with it later being pondered by the last Rider, Hannibus, whether they survived without them [the Riders].