go to jubilife, turn left at the fountain by the tv station, and surf to canalave
u get it by going into harbor inn then go to the house on the bottom then go to the pokemart [ canlave] and theres a dude there ask him then you can go to new moon
in canlave city
beat E4.go to canlave then sailors house talk to mother then go to sailor he bring you to new moon island to catch him
after beating the fifth gymleader Wake, you go and use surf to go from Juplife City to Canlave City.
You get there by surfing west of Jubilife City.
'VALANCE'
I caught one in canlave city.
After you beat Canlave gym and you've been to the library and Prof Oak tells you to go there they'll have disappeared.
there is ice cream that way
you have to get a members pass with an action replay
after getting the national pokedex in diamond or pearl, platinum go to iron island go in the empty house and talk to the gym leader of canlave city and he will give you the steel coat used to evolve a syther into scizor or onix into steelix
There are two ways: Trainer Battle:A fisherman on the the southn outskirts on Canlave I think he has a Lumineon I don't know. Wild Battle:lumineon's are found in:Iron Island,Valley Windworks,Canlave City east,North,west and south outskirts and Sandgem Beach.