Within the world of FFVIII are two islands that house powerful spells and monsters.
The Island Closest to Hell is located south west of the Galbadian Continent (one in a four chain long island branching southwest). It houses hiiden draw points for these spells: Meteor, Holy, Ultima, Aura, Flare, Full-Life, and Triple.
The Island Closest to Heaven is located northeast of Esthat, amongst the archipelagos there. The draw data is as follows: Tornado, Quake, Ultima, Triple, and Holy. These draw points reload quiclky, so these are the places to build up junctionmed magic.