The distance between the two factions was quite big, even with a Spirit Boat, and a good one at that, it would still take quite some time. Although the chief tribe, Ti Eru, could travel at a speed faster than the Spirit Boat if he tried, it would still consume Nether Energy and it isn't as practical as using a Spirit Boat.
Separating the Pigolo Tribe and the Desert Gargoyles was a long mountain range with the name of 'Yellow Streak Mountain Range'. This vast mountain range actually divided the barbarian land into two parts and took a large part of the South-West of this desolated land, outcast from the rest of this world.
Even people like Ti Eru didn't dare venture deep into the mountains were strong creature lurked such as The Flame Devouring Worm which can rival Gods. Fortunately, the Northern part of the mountain range was safer and they could safely and easily travel East to the territory of the gargoyles without having to fight dangerous beasts.