How do you get to Shimmer hill?

deoxy,s is in the meteor cave on floor 30

It has 18 floors

here is the wondermail code === #&S6 NY2& YJN= 1P57 FOMN MH7Y

you have to save scizor at the end of the game in Pokemon explorer. scizor gives you secret rank as a reward. soon you will get to go there

You need a Wondermail code: #&S6 NY2& YJN= 1P57 F0MN MH7Y