The dark spots in Undella bay
you can find dive balls at the mossdeep city pokemart
There is no HM called dive in Pokemon Diamond you fat oaf.
Undella Town.
dive is given to you by a girl in front of a house in undella town
Pokemon Dark Cry is the hacked version of another Pokemon game. There is not a HM Dive in this version.
Go to sootopolis and dive in the front of sootopolis! =)
there is no dive HM in DP but the water related ones are surf and waterfall
HM06 Dive can be found in Undella Town, by a girl in front of the house where Cynthia is located.
The HM Dive is available from a lady outside a house in Undella town. P.S: Inside that is where you will find Cynthia
There is a fanmade Pokemon Cursed Black version on cartrige, however there is a rom you can download (i can not find the website again, I will improve the answer when i do find it, sorry)
Does chaos black version even exist? Yes
You can't, you can only find that on the white version. You can find Tornadous in Black.