You can find the Underwater City in Blox Fruits near Frozen Village and Prison. However, as it’s under the water you won’t be able to see it. Instead, you will need to locate the 3 small islands with a whirlpool in the middle. To get to Underwater City you will need to enter the whirlpool, which will then teleport you down into the city.
Find Underwater City with Quest Tracker
The easiest way to get to Underwater City is to use the quest tracker. However, this will require you to be between level 375 and 449. If you are below level 375 or level 450 or higher then the quest tracker will take you to a different location. Fortunately, there are still other methods that you can use to find the Underwater City.

How to Get to Underwater City from Middle Town
When at Middle Town you will want to go to the dock side with Jungle on the left. From here you should also be able to see Pirate Starter. To get to Underwater City from Middle Town aim towards Frozen Village, then move slightly to the right and go straight. Go past Frozen Village and continue straight, making sure to keep decent distance from Prison. If you’re in a boat you should see the 3 small islands appear in front of you. However, if you’re flying you’ll want to stay relatively close to the water so you don’t miss it. Once you’ve arrived at the 3 islands go into the whirlpool and you will be taken to Underwater City.

How to Get to Underwater City from Frozen Village
If you’re having troubles finding the Underwater City then your best bet is to make your way to Frozen Village. This is due to Frozen Village being the closet location to Underwater City, making it the easiest to find it from. Additionally, Frozen Village is somewhat iconic as it’s an early game location, and is one of the locations for the Ability Teacher.
The easiest way to find it is to go to the cave where you get Aura from, then look out to sea then aim to the left. From here you should be able to see the 3 small islands that mark where Underwater city is. If you don’t then you can increase your graphics quality slightly or just travel a short distance until you see it.

How to Get to Underwater City from Fountain
Fountain is one of the easiest locations to get to Underwater City from. Simply get in your boat or fly aiming towards Prison, then go around it on the left side. This is also the side of Prison with the docks and main entrance. After a little more distance you’ll find the 3 islands and whirlpool that you must enter.

How to Get to Underwater City from Magma Village
Unfortunately, getting to Underwater City from Magma Village is probably the most difficult. This is due to it being the further location from the whirlpool. If you have the ability to fly then will be a lot easier as you won’t need to go around the islands.
Head to docks at Magma Village then go straight for Pirate Village. Once there, continue in the same direction towards Pirate Starter. Again, continue in the same direction and you should see Prison on your right and Frozen Village on your left. After traveling in the same direction a little further you will find the whirlpool and 3 islands needed to enter Underwater City.

Tips to Find Underwater City in Blox Fruits
Increase Your Graphics Quality
A great way to help you see the 3 islands that mark the location of Underwater City is to increase your graphics quality. Typically, your graphics mode will be set to automatic. By switching it to manual and using at least 4 bars for quality you’ll be able to see the 3 islands at a longer distance. Ideally, you will want to use 8 or more to ensure you have the best render distance. However, you won’t want to do this on a low-end device.
Wait Until You’re Level 375
If you’re close to level 375 then you may as well wait. At level 375 you will unlock the Fishmans Warrior quest which is located in the Underwater City. This allows you to use the compass quest tracker as a guide to the whirlpool entrance.
Find Frozen Village or Middle Town
Another option is to find your way to Frozen Village or Middle Town first. You can find your way to Underwater City fairly quickly from either location using our guide. Additionally, these locations are easy to find and may be recognisable to beginners.
Fly Close to the Water
If you’re flying to get around the map then you’ll want to stay down low. This will ensure you don’t miss the 3 islands and see them as soon as you’re close enough.