[edit] Warped Path of Time II

Warped Path of Time II - Suitable for Ice Mages level 65+, White Knights (ice) level 70+
Monsters Buffoon (Lv 74, 16000HP, 340exp, weak to ice)
Deep Buffon (Lv 77, 19000HP, 385xp, weak to ice)

Notable Drops Crystal Flowerring, Golden Raven, Omega Spear
Pros Decent spawn
Exceptional drops

Cons They hurt if they aren't frozen, and they're hard to dodge
Climbing can be annoying

Comments Seems like a good place for ice mages. They have very good drops (I just listed 3, they also drop stuff like Fire Raven), very good money. Yay for Ludibrium. Climbing can prove to be annoying though.
http://strategywiki.org/wiki/MapleStory/Training_Guide