the first 1 is a shot surf away from lilycove and the second is down from mossdeep, that one is by a big rock and you shold be able to dive and pop up in a chamber with a submerene hope this helped!
No, you cannot be a member of Team Aqua / Team Magma in Sapphire.
You fly to Slateport City and there you meet Archie inside the Slateport Harbor. Then you fly to Lilycove and head east. Once you reach the water you surf north. There you will find the aqua hideout. Once you defeat the admin, defeat the seventh gym in Mossdeep and dive on Route 127. You enter a cave underwater and reach Archie at the end.
Treeko is the best as team aqau use water type pokemons i agree with you but i dont agree with you i think torchic is the best because if you find a shroomish or a lotad you can take out the marshtomp/swampert faster but you can also flop that around if you choose treeko try to get a lotad and teach it water moves hope this helps anyone
Do you mean "aqua" (that is in my username as my favorite color...LOL) The root aqua means water.
To get the first Master Ball you have to get to the boss's office in the team aqau base where it will be one of the four pokeballs there (the other three are two Electrodes and a nugget). The only other way is to trade or have all numbers match while doing the lottery in Lilycove City department store.
You can't buy a master ball. You get it from someone or a hideout. depends from each generation sapphire/ruby- Lilycove Dept. Store: match every number lotter/ team's hideout (aqua/magma) Emerald- aqau's hide out Diamond/Pearl/Platinum- Galtic hide out (after saving Uxie, mespirit, and azelf)