@ Emperor Ultima:
I'm sorry.^^
You must check the cactus-stone in the south of the sand storm and here you get the first tip where you can find the first cactus.^^

@ Boco:
you must absolve a challenge with wakka. This challenge was the first challenge, that you made in this cave. It's a challenge, which different colours(i think). If you, then tell it.

MFG Clodan