give it to the lady that lost it:P
The key can be found by using the Dowsing Machine in the area near the southern exit of the Valor Lakefront. Upon talking to the girl, she will take it back and enter her suite.She'll give you a White Flute (attracts pokémon in tall grass) once you go inside and talk to her.
once Exiting the lobby coming from the beach/Pastoria City take one step forward then look left and press A you should find the suite key. If not, use the dowsing machine near the exit of the lobby
once you beat the 6th gym leader and exit your rival will tell you to go to the library go all the way up until you see porf. rowen dawn/lucas and your rival talk to them then there should be a loud tremor. then go to lake valor and your set! hot i helped.
Once you fight palkia you go to valor lakefront and go to the right. There used to be a guy that said there was a blackout, but now he should be gone. Hope i helped.
on the side where the woman lost it, go to the exit gate(do not go in) go up two steps and it is on your right. It doesn't matter though because she only gives you a white flute,which makes Pokemon more likely to come to you yeah but, once you get every flute you combine them for a chance to fight Garitina, Dialga, and Palkia, which you can catch, but if you already have 1 of them that 1 won't appear, hope this helps
The wrestler showed great valor when taking on 3 men at once.
after you beat the elite four fly to veilstone go down from veilstone and somwhere between valor lakefront and veilstone there will be a path called spring path once your there use rock climb 2 and then go right or left and use rock climb to turn back cave
you must explore spring caverns next to the lake team galatic drain of water which opens up once you complete the story mode. (EDIT)** dats how u get giratina not darkrai n it is called turn back cave n it is in sendoff spring which is in spring path which is in valor lakefront
The Suite Life on Deck - 2008 Once Upon a Suite Life 2-20 is rated/received certificates of: USA:G
you go and beat the Pokemon league
Once uve caught giratina
I think you can enter Lake Valor once you defeat the 5th gym leader and stop the bomb from happening.