How do I catch the following pokemon?

Granite Cave is on the edge of Dewford Town. The Berry Master's wife is right beside her husband at their house on Route 123. Relicanth is underwater on Routes 124 and 126. Wailord is found by fishing on Route 129 or by evolving Wailmer at level 40.

You can catch relicnath by diving under the sea and searching in the seaweed it may take a while though to find it

And you can find wailord round 129 or evolve it from wailmer
You can speak to the berry masters wife by surfing east of mauville and walking into the house next to the yard full of berries

1.In the sea weed by the city where the 8th gym leader lives.

2.In the water by the island where the 7th gym leader and by the city where the 8th gym leader lives.

3.Sorry but I never herd of it,so I don't know.

4.Just talk to her,if she's not there then I don't know sorry.

Wailord, You need to catch a Wailmer using a Super Rod on the right side of Lilycove.

its easy! u can sometimes catch a waillord with a super rod in the ocean, or u can just train ur wailmer to lv.40 then it evolves!Were to get a wailmer??:use a super rod any where in the ocean.

Finally:Relycanth. go to the bottom of the ocean and find grass. have a pokemon with u that knows sweetscent. Then use it near the grass and soon enough it will come up!
hope that helps!!! see ya!