MapleStory/Kerning City

This is the place where you go to become a thief. You must be at least level 10 and have 25 dex. This is the most urban town in Victoria Island, hence its' name. Outside of the town, there are a number of construction sites and partially completed buildings, overrun by monsters. The little pit with sewer pipes is usually crowded due to the high popularity of party quests. The middle sewer pipe leads you to a warning street, heading to the dungeon town, Sleepywood. Kerning City features a Party Quest for users between level 21 and 30, with a King Slime boss at the end. Further details are available at the page about party quests.
 * Kerning City

Kerning's most popular training area is in the Subways. It is also the host to three Kerning Jump quests. The first map, as would be expected, is populated by the weak Bubblings, however they can pose quite a threat to players that cannot deal enough damage to knock them back. The next map is filled with the flying enemies, Stirges. At this point, called the Transfer Area, the path splits in half. Both routes are similar, featuring Jr. necki and both Jr. and the "senior" Wraiths.
 * Kerning Subways