You don't. The S.S. Cactus is the name of the Abandoned Ship on Route 108. You use HM Surf to get there and then HM Dive to fully explore. You can't ride the ship though.
actually no
No.
yes
Get A SS Ticket To a Iland
Leftovers are an item that you can give to Pokemon to hold. In Pokemon Emerald, you can get them from the bins on the SS Tidal.
After you beat the elite four.
you have to get the tri pas
in little root town
Deafeat the Elite 4, then go to the fairy.
They are on the SS Tidal
you do a cactus dragon and a crystal dragon in the breeding cave if you want an emerald dragon
Answer:Lilycove City and Slateport City.