u know sandgem town go down and there it is :)
Go to Route 220 and use a super rod
You can catch Lanturn in Pokémon Diamond and Pearl by Fishing with the Super Rod in Route 220.
you need to find a finneon its at route 219 and canalave and route 220 and then evovle it it evoles around lv 30 and 40
In Pokemon Diamond and Pearl, you need to use the Super Rod in one of these locations: Routes 205, 218, 219, 220, and 221, Fuego Ironworks, Iron Mountain, Canalave City, and Valley Windworks. In Pokemon Platinum, it's the same method and locations as Pokemon Diamond and Pearl, except you can use the Good Rod in Route 219, Route 220, and Route 221.
you can not capture it in Pokemon diamond you have to migrate it that isn't true.... i caught it is Pokemon diamond and pearl so migrate isn't the only way... you can catch it on route 220 with a superrod after you get the national pokedex
Route 220 and 220.
Surf south of Sandgem town to get to route 119 and then surf to the right to get to route 220
Chinchou is a water and electric type of Pokémon in Pokémon Pearl. To get one, use a super rod on route 220.
Lumineon is the 135 pokemon, catch a finneon and train it or catch one in route 219 or 220 or canalave city using super rod.
Route 241 does not exist in Pokemon Pearl it only goes upto Route 230
You can get a Seel in Pokemon Pearl by finding it in the water on route 226.
You can obtain Swinub from the swarm in Route 217 in Pokemon Pearl.