Lucky Emblems in Kingdom hearts 3 are "objects" that resemble Mickey Mouse's well known face&ears symbol. There are a total of 90 and are needed to unlock the Secret Ending, we need all the 90 Emblems in Beginner mode, 60 in Standard and 30 in Proud Mode in order to unlock it.

There are 13 Emblems in The Caribbean:

1- From Port Royal Dock Save point the Emblem is on the small boat in front of you.


2- Now proceed left close to the sea to reach a open building. the Emblem is on a pillar.


3- From here Fly/Swim to the other dock to the South, you'll see a hut to the right with some fruit and the Emblem.



4- Now reach the dock's bridge, there's a metal plate hanging at the beginning of it, the Emblem is engraved on it.



5- From here fly/run to reach the Prison, reach the top of it where the Flantastic and the cannons are. There a small tower in the middle, jump on top of it and look down to your right to spot the Emblem


6- From the Save Point on the roof and walk inside the prison to reach the cells, you'll find the Emblem on an iron ball inside of the 3rd cell.


7- Isle Of Luck, on the farthest west of the map. Jump on the highest pillar and look down to spot the Emblem.


8- Horseshoe Island, reach the east side of the island to spot the Emblem from your ship.


9- Isla Verdemontana, follow the path to the top and at the intersection take the left path, look down from the top and you'll see the Emblem in the water.


10- Isla de Los Màstiles, reach the island and jump on top of the rock there where the Willpower spawn, you'll spot a broken barrel forming the Emblem.


11- Ship's End, from the South side of the island you'll see a wrecked ship, climb on the island to spot the Emblem on the ship.


12- Sandbar Isle, from the save point fly to the southern part of the island where you see all the trees. You'll see a cave deep in the water in the middle of it, jump in it and you'll see the cave entrance resembling the Emblem by facing North-East.


13- From the previous one just check the rocks in the middle and you'll spot the last Emblem.


For a detailed walkthrough check the video below: