Mossdeep city is directly east from lilycove city you need Surf to reach there.
Mossdeep cityit is in mossdeep
you have to
in Mossdeep city, Artard
You can't, You get dive from Steven in his house in Mossdeep.
In mossdeep city.
in mossdeep city
in mossdeep city
in mossdeep city {space center}
You go to the man north of mossdeep.
Mossdeep city
not
You have to surf there first. From Lilycove City, you surf to the right till you reach Mossdeep City.