Where do you find giratini in Pokemon pearl?

Answer 1

You can catch Giratina in Turnback Cave. This is at the end of the Spring Path off Route 214. The Spring Path only appears when you get the National Pokedex by seeing every Sinnoh Pokemon. To get to Giratina, you have to walk through three rooms with pillars in the middle before you walk through thirty rooms total. Hint- don't walk through the door you just came through except to leave the cave. Giratina is Level 70 and very strong, so I recommend bringing a Staraptor, which is immune to most of his attacks, going at night, and bringing at least 30 Dusk Balls.