The shack at the Observatory Mountain
Before going to the Shimmering Island
This achievement cannot be obtained after the events on Terra as the Observatory is inaccessible. THIS ACHIEVEMENT IS MISSABLE.
There is an eldrely fellow named Morrid inside the shack at the Observatory Mountain who is just dying for a good cup of coffee.
You need to find the three coffees at different locations in the world and return to him with them, before heading to Shimmering Island.
At the entrance to South Gate near the Chocobo Forest. This is obtainable from the start of the game until you go to Shimmering Island.
On Eiko's back porch in Madain Sari close to the waterfall by the table.
Windmill at Dali Village. You need the Mayor's Key
During the card tournament, if you head through South Gate to Dali, you will be able to search the Mayor's house, since he is not home at this time.
When you enter his house, Zidane spots the mayor's son napping on the sofa in the middle of the room. If Zidane moves too hastily, he'll wake the boy and have to start the search over again. You can search the following in the room: desk, ladder, heater, and shelf.
When you start to search each location, the boy in the middle of the room will react. If you wake the boy up you will be forced to leave the room, although you can search the room many times during the card tournament.
You can determine how sleepy the boy is by seeing what he says when you search in the room. There are four types of reaction:
"Zzz..." - Search the area next to where you are.
"Hmm..." - Stay still
"Uhh..." - Stay still
"Uhh...Who's there?" - Forced to leave the room
To avoid waking the boy, you can only search the location just next to you. So if you go in from the main street, you can only search the desk and the shelf first, and if you go in from the windmill you can only search the desk. If you do it on the same location twice, the boy will says "Zzz...".
The Mayor's Key is in the stove. There is also a Mini-Brahne figure in the desk.
Go to the locked door in the windmill and use the key to open it. Move around the chocobo pen to the right side, where a hidden treasure chest contains 30,000 Gil. Check the same chest again to find the Burman Coffee.
END OF THE EVENT
If you talk to Morrid, sitting at the base of the Observatory, with the three coffee beans in your inventory, he will arrange to deliver the model of the theatre ship to the Theatre District in Lindblum.
The achievement unlocks after delivering the coffee beans to Morrid.