(you'll need surf and rock smash)
Go to route 204
go inside the ravaged path
you'll find it in the northeast corner of the cave
You get the choice if a Turtwig Torchic or a water Pokemon at the start of Diamond
In the desert. (No really, simple logic in the water!)
you can find one while mining
You can find Pidey in a Pokemon Outbreak in Pokemon Diamond
you find lumieon in the water in floweroma town the Pokemon that you have to use is butgresse
Find it while surfing or fishing with the super rod in most water areas.
you can find them underground if u look long enough
But if you want a water stone, trade one over from firered/leafgreen on a Pokemon or you can find one in the underground.
In Pokemon Crystal.
fish by canalave with super rodA trainer has it on the way to the Pokemon league in the water
Barboach can be caught using the Good Rod in many bodies of water in Pokemon Diamond. One of the areas where it is easy to find with the Good Rod is the Great Marsh.
where do i find a totodile in Pokemon diamond/pearl on nintendods