The name of Edward Kenway’s ship in Assassin’s Creed 4 Black Flag is the Jackdaw. It’s a worthwhile vessel, and will serve you well on your voyages around the sea. However, like all men are wont to do, Edward will definitely want to pimp his ride.
Assassin’s Creed 4 Black Flag Underwater Shipwrecks Locations
You can do so through elite ship design plans that you can find at various underwater wrecks and caves. These plans will do wonders for the Jackdaw, and range from new weapons to various stat boosts and useful tools.
You can also find a lot of loot at these locations, so if you come across one that doesn’t have a ship upgrade, you’ll nevertheless leave with your pockets much heavier.
Keep in mind that all of these dive sites are locked to you until you’ve completed the ‘Diving for Medicines’ mission in Sequence 6, so you’ll want to finish that before you go hunting for these lost treasures.
Petite Caverne – Coordinates: 901, 263
This Cavern doesn’t require you to get your feet that wet.
You can simply sail to the location and enter normally. However, there are several guards around the area. The entrance tunnel is being guarded by a marksman, so seek him out ASAP and take him down silently (the blowgun or some other ranged tool would be quite effective).
Simply go around the cave killing people, or just initiate a large melee and do more of the same. Once you no longer have to worry about the pirates, you can collect the Treasure map on the west side.
There is also some buried treasure here, but you can only find it once you have the Cayman Sound Treasure Map. You’ll find the Elite Heavy Shot Storage design plan as well as 3000R.
Jiguey – Coordinates: 565, 539
This area also does not require diving.
Sail to the provided coordinates and leave the Jackdaw outside. Inside you’ll find less than 10 guards, and it’ll be a piece of cake to eliminate them. Still, it would be unwise to engage all of them at once, so show a modicum of stealth and assassinate some of them before brawling the others. A good idea is to start with the guy to your right as you enter.
There is another buried chest here, near the coconut tree. All it contains is 4000R.
Kabah Ruins – Coordinates: 769, 145
Now it’s time to take the plunge (literally). From the diving bell here, go forward and left to snag a chest, then back to the bell. After that you need to head to the ruins on the other side.
Inside the lower level is a chest as well as an Eel. You’ll want this chest since it holds an Elite Round Shot Strength upgrade. Now, without wasting time, go to the upper part of the ruins for an Animus Fragment.
Leave the ruins now and head for the air barrel that’s a ways below. From here you’ll find a long straight path where a powerful current will blow you back periodically. When you see the screen shake, take shelter near the sides and wait for the current to subside before proceeding.
There will be a bunch more chests, one of which is near another Eel and another air pocket where you can get some respite. Use this air pocket to fill your lungs before you return to the entrance of the tunnel.
Now go towards the patch of seaweed, but be careful as there is a shark prowling nearby. When it turns away, head for the wreckage and a chest. Go to the air barrel on the other side and go southwest.
There’s another patch of seaweed you need to use to escape another shark. You’ll see another chest around here. Head to the back of the wreck for another fragment.
You’ll find another chest as you keep going this way, as well as a shark that you need to wait for. Go to the next air barrel. Use a burst beam and you’ll reach the eighth and final chest here. Head back to the bell.
Devil’s Eye Caverns – Coordinates: 487, 357
There are no sharks to be encountered here, so that’s something.
First of all, head to the wreckage on the floor to find two chests. Replenish your air supply and continue down the tunnel. Before long, you’ll come to a fast moving current. There is an Animus fragment to be collected here, as long as you keep an eye out for any tunnel to the left.
Swim around a Moray Eel to find another chest, then keep swimming onwards for an air barrel and some jellyfish. Keep going and you’ll come to a hatch that you can open. Inside you can find another chest.
Enter the nearby tunnel and swim with the current that takes you. When you get to an air pocket, ascend to replenish your supply. Submerge towards the west to find a chest, and keep going through the tunnel west, then south.
Pick up an animus fragment as you go. Before long you’ll exit the water near a slope. Head up and you’ll find two more chests. These contain the Elite Swivel Guns designs. After you have them, dive off from the right.
Swim down and you’ll find the last chest, as well as another current. Follow the current, surface, and you’ll find yourself near a tunnel that takes you to the diving bell.
The Blue Hole – Coordinates: 471, 170
There is an annoying shark here that patrols the length of the ship here. You can avoid it and reach the first chest by utilizing the seaweed patch to the left of the hull and the covered area on the deck.
After scouring the first chest, head back to the covered area and make for the air barrel through the doorway to the north.
When the shark moves away, head out and go for the next section of the ship. You’ll find a chest here, as well as some stairs leading up. Now you need to reach the captain’s cabin, but be wary of the shark and time your swim well.
At the cabin you can find a chest, then go to the left side of the ship, to a hole in the hull. Around here you should find an animus fragment, as well as a treasure chest to the north.
After collecting it, swim out of the hole on the east side and reach the sea floor. Head north from here to find an air barrel. There will be another chest to the west of this barrel guarded by an Eel, so be careful.