Just train a wailmer to level 40.
It is to get Regirock Registeel, and Regice you have to have a wailord and a relicanth
You can find it in Route 129 but it is rare.
Evolve a wailmer at level 40.
You cannot catch Wailord. You can, however, catch Wailmer, which evolve into Wailord starting at level 40.
find a wailmer then evolve it
At the place where a sandstorm is...... you'll need two Pokemon to catch it.... which is wailord and recaith. Also a Pokemon that knows dig for the place where reirock is to open.
Pokemon ruby's version IS Pokemon ruby.
Wailord is not available in Firered as are all Hoenn pokemon if you want a Wailord you must trade one from Ruby,Sapphire,or Emerald.
You get wailord in route 129 or evolve your wailmer into a wailord.
in the hoen ocean
Yes, it always has to be Wailord and Relicanth - Relicanth in the first slot and Wailord in the last in Ruby and Sapphire, and Wailord in the first slot and Relicanth in the last in Emerald.
Get a Wailmer and evolve it. It evolves into Wailord at level 45.