skorupi,wooper,quagsire,carnivine etc.. u can check where to find which Pokemon on the upper room by checking the telescope.
The Great Marsh.
in the grate marsh
You can find Yanma in Pokémon Diamond in the Great Marsh.
Its a rare Pokemon in the Great Marsh.
Pastoria's great marsh.
In Pokémon Diamond the Great Marsh can be found at Pastoria City. Please look on the map.
you cant ,for some reason or another, you have to get Pokemon platinum and find it in the great marsh
You can find it at great marsh,pastoria does this help?
To get Breloom in Pokemon Diamond you need to evolve a Shroomish. Shroomish can be found in the Great Marsh after you obtain the National Pokedex.
in the great marsh in the great marsh
You can find one in the Great Marsh after you complete the Sinnoh Pokedex.
I found it in the great marsh by fishing area 3