How do you get the sixth gym on Pokemon Diamond?
You have to beat the 5th gym. The sixth gym is located in
go to Canacalve city
To get to the sixth Gym Leader you will have to obtain the 5th Gym Badge from Hearthome City. To the west of Jubilife City, near a place called Canalave City, find a walkway near route 118 that leads to a small patch of water. Surf over the water with the Pokemon that knows the move. Then you'll come across the Gym. The Gym leader is Byron, You'll get a type advantage if you take…