This achievement is gained upon visiting all the zones in the Depths of Darkhollow.

 Nektulos, Shadowed Grove Traveler
Corathus Creep Traveler
 Sporali Caverns Traveler
 The Corathus Mines Traveler
The Undershore Traveler
 Snarlstone Dens Traveler
 Shadow Spine Traveler
Ruins of Illsalin Traveler
 Illsalin Marketplace Traveler
 Temple of the Korlach Traveler
 The Nargilor Pits Traveler
Stoneroot Falls Traveler
 Prince's Manor Traveler
 Caverns of the Lost Traveler
 Lair of the Korlach Traveler
The Hive Traveler
 The Hatchery Traveler
 The Cocoons Traveler
 The Queen's Lair Traveler
Dreadspire Keep Traveler

Rewards

• Player Flags: Increases Journeyman's Compass by 1
• Journeyman's Compass - If you don't have one