There are two ways to get Wailord . The first and easiest way is to get a Wailmer. Level it up to level 40, and it will evolve. The other way is to surf around route 129. If you do it this way, it will probably take you days to capture it, so I do not recommend it. Wailord is a Pokemon needed to find the Regis Trio.
Answer
Wailmer can be caught by super rod in most water spots and just evolve it. (lv 40)
Answer
There is a very slim chance that you can catch Wailord use a super rod on route 129. The best way to getting a Wailord is by catching a Wailmer by using a super rod then evolving it. It evolves at level 40.
Evolve a Wailmer (Level 40)
Swampert or Wailord.
You Can't
Wailmer evolves into Wailord at level 40.
Get relicanth and wailord. Put relicanth in the first slot and the wailord in the last. Then make a pokemon who has dig use dig.
No, but a 45 wailmer is basically a wailord.
you can find it at rout 129
in shinetown city
You do not need a Wailord to catch a Registeel in Pokemon Emerald. You may need a Wailord or any other water-type Pokemon to surf to the place where you catch Registeel, but other than that, you don't need a Wailord.
wailord you have to evole from wailmer and relican you find in dive mode.
A haryama A blissey A Wailord
Evolve a Wailmer (Level 40)
Get a Wailmer and evolve it. It evolves into Wailord at level 45.
Wailord do not evolve any futher. They are the first and last evolution of Wailmer, who evolve into a Wailord on level 40.
Swampert or Wailord.
You Can't
In Pokemon Emerald to solve the Sealed Chamber puzzle you need to put Wailord at the top of your party. Relicanth needs to be at the bottom of your party. This order is the reverse of the order needed in Pokemon Ruby and Sapphire.