Start from 36.59 32.25 Quartermaster Alfin
Quartermaster Alfin will ask you to clean the area from [npc=136566] (Small neutral raptors all over the area)
When you kill 8, you see [npc=136561]
Follow it to the north and at 36.14 36.78 you will see Mysterious Trashpile.
Use the Mysterious Trashpile and it will port you to the Jani's world.
This quest is related to the Get Hek'd <= more info
The easiest way to do both quests is when you are on the The Zanchuli Council part of the The Throne of Zuldazar
You need to complete 2 quest to be able to interact with Jani all over the Zandalar.
Id
Quest
Faction
Questgiver
Zone
Subzone
Video
1
Horde
[npc=127665]
Zuldazar
The Zocalo
https://www.youtube.com/watch?v=2KlPdy7_jNo
2
Horde
[npc=126334]
Zuldazar
The Zocalo
https://www.youtube.com/watch?v=0UPJ4L89Q6I
1
Alliance
[npc=136562]
Vol'dun
Shatterstone Harbor
https://www.youtube.com/watch?v=XnEsCmhGVHI
2
Alliance
[npc=136559]
Vol'dun
Shatterstone Harbor
https://www.youtube.com/watch?v=OMKJFE58ZPc
/way Zuldazar:Zandalar 54.74 35.44 Horde [Pests] quest from Nokano
/way Zuldazar:Zandalar 53.10 31.64 Horde [Curse of Jani] quest from Jani
/way Vol'dun 36.59 32.25 Alliance [Pests] quest from Quartermaster Alfin
/way Vol'dun 36.14 36.78 Alliance [Curse of Jani] quest from Jani