Pokémon Diamond and Pearl/Turnback Cave

Turnback Cave is probably the hardest dungeon you have or ever will face. Inside are high level Pokémon, and the place is crawling with them. Also, you cannot use an Escape Rope to get out, so you will have to remember how to get out. This is way harder than it sounds because Turnback Cave is seemingly endless. Finding what you want here will be very hard.

Pokémon Encounters
As you can see, the Pokémon here are very strong.

Points of Interest
Giratina is in a random room inside of Turnback Cave. There are tons of rooms inside of the Cave. They are usually rooms with four doors to the north, south, east, and west. They either contain a pillar in the middle with a pointless number combination on them, or they contain patterns of Rock Smash-able rocks. You will probably want to bring a level 70 Pokémon with you, put in in the lead, and bring 15 Max repels along with you.
 * Giratina

Finding Giratina will almost assuredly be by luck, and since the Turnback Cave is so vast, it is almost impossible to write an effective walkthrough for finding Giratina. Once you find Giratina, continue to the next paragraph.