You have to have a Pokemon in your party which know the HM Dive. Surf onto water then go to your party, select the Pokemon that knows dive, and click on Dive.
get rayquaza
You get Dive from steven not may.
you can find dive balls at the mossdeep city pokemart
to get a heart dive
find it using dive
You have to have a poke'mon with dive.
Dive:Mossdeep CityWaterfall:Cave Of Origin
Use dive.
get a water Pokemon yhe TM dive and well dive under the water
You can catch it when you use dive.
You get it from Steven Stone in Mossdeep city.
mossdeep city dhoom