Miracle Sea and Surrounding Sea
You can find recruitable Gastly and its evolutions in Sky Stairway.
In Pokémon Flora Sky, you can find Lapras in the cave known as the "Ice Cave." This location is accessible after you obtain the Surf ability, allowing you to navigate the water. Look for Lapras in the water sections of the cave. Additionally, you may encounter Lapras during certain in-game events or by using the Safari Zone feature, if available.
You have to buy it in a shop
anywhere
You can find Jolteons at Spacial Rift.
yes just go 2 the beach & lapras will be there..veronica
You can't get Primal Dialga, but you can get normal Dialga after you beat the cave (Lapras will always be at the beach and you can ride him to go to Hidden Land any time)
You find a chimchar, train it, evolve it.
Find them all.
you find darkrai in the dark crater!
No. You'll have to find some more codes specifically for explorers of sky. (Sorry I don't know any. I only have Time and Darkness.)