Yes, because you need to surf from Jubliffe to Canalave.
you need an action replay
canalave city over a lake need surf
you need hm strength which you can get from bryon after defeating him in canalave city.
By darkrai.jou need to fulmoon island. By by from belgium.
you go to any city then go in the poke mart then go to canalave then the door should be open but you need the national pokedex
To get TM 91 (Flash Cannon) all you need to do is beat Byron at the Canalave City Gym.
On the sea route between Jubilife City and Canalave City. You need to use a Good Rod, Finneon will be around level 15.
west from jubilife city but you need surf.
In Pokemon Diamond, Pearl and Platinum Darkrai can be found on Newmoon Island. To get to Newmoon Island you need the Member Card for the Harbor Inn at Canalave City.
You Either Need To Find An Event, Get The Wonder Card From a Friend Or Use An Action Replay Code.
you need tough pokemon that can beat him
You need to use the hidden move (HM) surf from jubilife city.