Listen

I NEED TO FIND; Kashkbald Desert
I've looked everywhere and I still can't find it -_ -
PLEEEEASE HELP US...UHM...ME!!!

Read somewhere it's in southern Esthar. Shouldn't be too hard to find a
desert somewhere around there, and just open the menu to see exactly
where you are when you get there, if it's Kashkabald Desert then you're
all set.

.opt

southern most tip of Esthar if you look for the cactuar that jumps around on the island to the south you should be standing in flying above the Kashkbald Desert

Oh that's the island he's looking for. I just call it Cactuar Isle. :p

Ya, it's easy to find. If you want to kill regular cactuars without fighting
Jumbo Cactuar, go to the big desert on the main land, if you want to get
GF Cactuar, fight the Jumbo Cactuar on the desert island.

.opt

just remember the very tip of the penisula sometimes has Jumbo cactuar land there it's to do with the coded radius he can move in but it is rare he lands there but keep your eyes open.

Thanks I've found it ;)