Its been a while since I first went in there so I don't remember what items you can find, but I do know that you can find the Pokemon Smeargle in there.
Click maps and scroll down until you see the artisan cave map click on it and your there.
Only Smeargle.
That would be Smeargle.
If you mean Artisan Cave, you can only find Smeargle.
only smeargle. hope it helped.
Minun can be found in Artisan Cave.
that cave will open after beating the elite four near route 111
Go to the battle frontier and go toward the battle palace notice a tree somewhere nearby go to it and use the wailmer pail on it it will attack! Its sudowoodo! Capture it or defeat it then surf down the waterfall and go to the left and into the cave now your in artisan cave.
First you catch sudohoodo at battle frontier and you do surf ,you cross the waterfall and a few steps later you find a cave. It is ARTISAN CAVE in this cave only this Pokemon exist
You have to find it in Artisan Cave After you beat the Elite Four and go to the Frontier Place.
Don't think there's a secret, except for the fact that there are only Smeargle in there. (submitted by Olivictor)
its not under a boulder its smeargle and there everywhere in artisan cave.