You're easiest off doing this Metin2 gold if you are level 60.

Mauradon instance runs: You're easiest off doing this Metin2 gold if you are level 60, because almost everything in the dungeon will be grey and won't aggro unless you get very close.
You have to do the Legend of Maraudon quest (best done grouped) to receive the scepter of Celebras, which allows you to teleport to the end of the dungeon. Once ported inside you can kill Tinkerer Gizlock.
Uldaman: Pretty much the same deal as Scarlet Monastery, possibly worthwhile for enchanters.
Don't try and kill him in melee range, but hit him up with DoTs from a small distance and use drain life. He will drop one of three blue items selling between 2.4 – 3.2 gold. The dagger he drops has a +14 spell crit rating; you might want to actually use it.
Getting from the entrance of the zone to Gizlock and killing him takes all of 5 minutes. However, you can't just walk up to an exit and re-enter, since you're deep into the dungeon.
The easiest way is to die and run back. (Unique all your items with durability before dying) You could also bind in Shadow prey Village if you are horde, and let yourself get kicked out of the instance when you've killed Gizlock. (Have someone invite you to a group, and drop when you are done inside.