You have to fish with a super rod.
30
In Pokemon Emerald Carvanha evolves into Sharpedo at level 30. You can also catch wild Sharpedo in Routes 122 to 133 by fishing with the Super Rod.
Carvanah evolves into Sharpedo at level 30, so just level it up and it evolves.
You can find it on black city or white forest,i caught a carvanah and a sharpedo,they even have gyrodose!
its not an emerald its RAYQUAZA the main legendary Pokemon in Pokemon emerald.
A corphish is better.
You cannot get a Yanma in Pokemon Emerald, as only Hoenn Region Pokemon can be found in Pokemon Emerald.
Sinnoh Pokemon DO NOT EXIST IN EMERALD!!!
emerald no doubt
There is no PalPark in Pokemon Emerald.
where can i find groudan in Pokemon emerald
rotom isn't in Pokemon emerald