Levels 30 +
At this point I would really focus on leveling. Main Land Caves 1F is great for leveling and for getting some good cash. Losus Island (tricky to get onto as you have to random tele onto the island) is very good for experience but not so good for money. Orc Fire Fields are good for experience but doesn’t earn you a lot of money. These are the three main areas that I would stick with until you are closer to level 40. You will still receive very good experience in all three of these areas.
Shortly after reaching level 30, you will want to take the Level 30 Mage Quest. View the Quest Guide for more details on the quests you can take.