In Pokemon Platinum where do you find all the legendary Pokemon?

Answer 1

you have to go the snowpoint city and go to the lake and help the professor then go back down but make sure to have a gym batle there and have alot of potions then come down again and make sure you picked up their card that they have dropped at the lake then you can go in there you have to go the snowpoint city and go to the lake and help the professor then go back down but make sure to have a gym batle there and have alot of potions then come down again and make sure you picked up their card that they have dropped at the lake then you can go in there

Answer 2

Azelf and Uxie will be in their caves in Lake Acuity and Lake Valor respectively. Next you'll run into Mesprit in its cavern in Lake Verity, once you do it'll run away. It'll now be roaming around all over Sinnoh. Basically finding it is all about luck really however they will only appear in their respective island caves if you have freed them from Team Galactic's Veilstone Headquarters.

Dialga and Palka = both will have portals up in the Spear Pillar - at least after you deal with the Distortion World and Giratina Origin Forme issue. You need their respective orbs and you need to talk to Cynthia's Grandma in Celestic Town (in the house up North, it's the house in the middle) in order to activate their portals. Once you do, you can go into a portal 1 at a time and battle them.

Heatran is in the back room of Stark Mountain.
Regigigas = you need to have Regirock, Regice and Registeel in your party then make your way through the Temple in Snowpoint City. You'll run into it eventually.

Giratina = It'll be found at the end of Distortion World. If you knock it out, you might be able to see it post-Elite 4 at the Turnback Cave.

Cresselia = go to the house that has the boy who is sick in it in Canalave City. Afterwards talk to the Sailor and he'll take you to Full Moon Island. Talk to Cresselia and it'll fly away. It's now roaming around Sinnoh like Mesprit is so finding it is basically up to pure luck.

Articuno/Zapdos/Moltres = talk to Oak in Eterna City, he'll activate this event. All 3 will be roaming around Sinnoh like Mesprit and Cresselia both are.

Regirock/Regice/Registeel = These 3 are only available if you have the movie or Toys R Us Regigigas. The special cave for Regirock is on Route 228. It'll be near where a Nevermeltice is/was.
The Regice cave is within Mt. Coronet, it's right by the exit to Route 216.
The Registeel cave is within Iron Island, it's right by the exit. It's where a Metal Coat can be found as well.

Darkrai/Shaymin/Arceus = These are only available the legit way through special Nintendo giveaways called Nintendo events. So far only Darkrai and Shaymin have been given away but their non-Japanese events have passed so the only other way to get them (Darkrai, Shaymin and Arceus) would be through a cheating device such as an Action Replay.

Answer 3

After defeating Cyrus in Team Galactic's HQ, go to the right and there will be a teleport. Walk into it and follow the path. The Legendary Pokemon will be in the next room.

Answer 4

It's North of Veilstone City, but you cannot enter the Team Galactic HQ without the Galactic Key, which can only be found in the Galactic Warehouse later in the game.

Answer 5

in the spear pillar where you go to this weird world and his name is Cyrus