Thank you very much for your observation.
My question and answer is focused on situations where you find yourself white skull or pz lock, (using some quests), although some answers to the question made above may not be the same depending on the type of pvp (open pvp, retro pvp, hardcore pvp,) in addition to this try to add more ways which were not "shortcuts" or cities that are next to each other.
Castle of falcons (zao) - Edron (The order of the falcons "The Secret Library")
Issavi south steppe - Krailos steppe (Aspiring oracle "Kilmaresh Quest")
Venore - Darashia - Port Hope (Haunted Places "Dreamcourts Quest").
Svargrond - Ankrahmun - Zao (Gold Tokens"Heart of destruction quest)
in addition to this, using answers where it is not necessary to abuse a bug.
Note: Only put 2 because only 1 answer and only 2000 length text.