You go to mauville and and go down to the cycle path enterance , you will see a fisherman there , surf on that water then go east and u see a cave enter it and its new mauville , that's how to get to it in emerald , its probably the same in rub and Sapphire , GL Catching the rare Pokemon there,
the daycare in Pokemon ruby is between verdanturf city and mauville city
Mauville
on mauville city
New Mauville city
in mauville city after you have helped rydel
you go to mauville city
in a house in mauville city
in between mauville and that other city
The Day Care in Pokemon Ruby is on the route West of Mauville City.
To get flamethrower on Pokemon ruby you have to learn it or you just have to buy it at the game corner in mauville city.
Cutters house mauville city
it is Mauville gym