there are many good places, it depends on what level you are. there are slime trees (in ellinia)for around lvl.10-15 ppl, the dungeon for lvl. 20 and up, beach hunting ground for lvl.10- 20 (go in through a danger sign on the path between henesys and lith harbor), and pig beach for lvl.15 and up
What is the best place, in this game called Maple Story, to train?