Get to all the palces marked on the map a bit lower, those are the places you'll need to visit for The [Explore Tanaris Desert] Achievement! The Achievement is needed for the [Explorer Kalimdor] Achievement, wich is needed for the [{Name} the Explorer] title! Hope this helps ^^

Tanaris Desert:
1.  Gadgetzan
2.  Noonshade Ruins
3.  Zalashji's Den
4.  Waterspring Field
5.  Broken Pillar
6.  Dunemaul Compound
7.  The Gaping Chasm
8.  Land's End Beach
9.  Valley of the Watchers
10. Zul'Farrak
11. Sandsorrow Watch
12. Steamwheedle Port
13. Lost Rigger Cove
14. Abyssal Sands
15. The Noxious Lair
16. Southbreak Shore
17. Eastmoon Ruins
18. Southmoon Ruins
19. Thistleshrub Valley
20. Caverns of Time