Fire Swamps

This stretch of swampland is marked for the hot springs, methane geysers, and raging fires. Large cracks beneath the surface of this swamp bring water from deep within the planet, and with it, huge bubbles of methane gas, which frequently ignite in massive explosions. Large pools of toxic water boil all around, releasing poisonous gasses into the air around, forming an almost constant fog over the swamps. Very little can survive in these conditions, but those that do are very safe from anyone who wishes to find them.