u needsuper rod
route 223 or 230
The Pokemon Wailmer evolves into Wailord at level 40 on Pokemon Black.
I am looking to join Wailmer to my team.But, no you can't catch it with an old rod
Yes, you can. Though it's much easier and faster to catch a Wailmer by fishing.
Wailmer EDIT: I think Wailmer can only learn dive.
undella bay
It evolves at level 40.
wailmer and sharpedo
Catch a wailmer and get it to level 40.
you will have to fish for it preferable with a super rod around mossdeep city. you can get the super rod from a man in a house north of mossdeep.
catch a wailmer with a super rod then level it to 40
If you are talking about Pokemon diamond you must go to the battle area and get a super rod from the fisherman standing next to the walkway. After you have that fish anywhere in the island and you are definitely gonna find a wailmer around lv 40. For Ruby, Sapphire, and Emerald, you can't catch a lv 40 wailmer, but you catch a wailmer at Mossdeep City using a super rod.
You can't catch a Wailmer in HeartGold but you can trade with someone to get it. Or you can do what I did and migrate it from another game. But be careful, if you migrate a Pokemon from another game you can't send it back to where it came from.