The Island Closest to Hell (地獄に一番近い島, Jigoku ni Ichiban Chikai Shima?) is the western-most island on the southwestern side of the Galbadian Continent. It is larger than the Island Closest to Heaven, and easier to locate on a map, but is only accessible by using the Ragnarok.
It is shaped somewhat like a misshapen "X" or an elongated "H". It, along with the Island Closest to Heaven, is known for having some of the strongest monsters, with all of them being level 100. The island's monsters are known to possess high Strength and Vitality, but they are susceptible to status ailments, unlike monsters in the Island Closest to Heaven.
Like its counterpart, Island Closest to Hell is a useful level grinding spot. As all the monsters are susceptible to Quistis's Limit Break Degenerator, leaving Quistis in Critical HP and Junctioning Initiative will allow the party to clear out powerful enemies easily.
There are 31 draw points containing various rare and powerful spells, and it is one of the few locations where the Ultima spell can be found. However, not every draw point will be active at the same time, and they take a long time to recharge.