Go to Celestic Town and click on the ruins then Cynthia's grandma will give it to you
Celestic town shrine
CATCH A WATER TYPE POKEMON!!! BUIZEL!,MAGIKARP!
Only possible in the early japenese version they fixed it in all the other games sadly :[
You can't. There is only one speed to the "Surf" on Diamond/Pearl.
there is no dive HM in DP but the water related ones are surf and waterfall
3rd gym
No
surf there
with surf
Ash has 6 Pokemon in Diamond version
I dont have pokemon diamond
Celestic Town