To get to Mossdeep You will have to beat Wiona and then go to Deford and keep on Surfing east.
When you beat Tate and Liza you can either go strait to Sootopilis City or surf south then west to Pacifilog City
Hope I Helped!!!!
you have to
in Mossdeep city, Artard
In mossdeep city.
in mossdeep city
in mossdeep city
You have to surf there first. From Lilycove City, you surf to the right till you reach Mossdeep City.
in mossdeep city {space center}
not
Mossdeep city
Shoal Cave above Mossdeep City
How do you unlock the door in the old man's house who lives on mossdeep city on Pokemon Ruby
In Pokemon Ruby/Sapphire/Emerald in Mossdeep City.