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Ocean monuments and how to find them in Minecraft: Windows 10 and Xbox One

The Boss Update to Minecraft: Windows 10 Edition, brought a whole bevy of new features, including ocean monuments and their Elder Guardians.

To help you get along, here's a guide to ocean monuments, including how to find them and what to do when you get there.

What is an ocean monument?

An ocean monument is a large structure that you'll only find out in deep sea. It is about three times larger than the temples you'll find in deserts, and it is made primarily from a special block called 'prismarine' that is teal in color and can be mined with a pickaxe.

Ocean monuments are sort of U-shaped, with the treasure room located somewhere inside — an ocean monument's internal layout is completely random, so you'll feel like you're in a labyrinth. The halls are lit by sea lanterns, which you can collect if you have a Silk Touch enchanted tool. Mining sea lanterns with anything else will simply drop prismarine crystals.

What is an Elder Guardian?

There are two types of mobs that spawn within an ocean monument: Guardians and Elder Guardians.

Guardians resemble one-eyed fish with orange spikes sticking out of them. They swim very fast, have a decent amount of health, and can shoot laser beams. If you attack them when their orange spikes are visible, you will receive damage. These foes should not be taken lightly, especially because the effectiveness of your sword and bow are lessened by the water. Guardians, when killed, will usually drop some prismarine shards and some raw fish.

Elder Guardians are much more difficult to beat. They have more health, a stronger laser beam attack, the same thorns-style defense, and they can cast the Mining Fatigue spell. These enemies should be dealt with first, if possible, when dealing with an ocean monument. Elder Guardians, when killed, will normally drop a couple prismarine shards, some raw fish, and a sponge.

How do I find an ocean monument?

Your best bet for finding an ocean monument is to craft a boat and set sail on the open sea. Do this at night time, as the sea lanterns will give off some light to help locate the monument.

The Elder Guardians who inhabit the ocean monument cast a spell called Mining Fatigue when you enter within sight — normally Elder Guardians spawn inside the ocean monument, but they will sometimes spawn outside. If you're sailing around and get hit with Mining Fatigue, you'll know that you're close. Your best bet is to retreat and prepare yourself for the adventure ahead.

How to prepare for an ocean monument

Ocean monuments are tough to deal with — you will want to wait until you have a good base going on land, including an enchanting table, brewing stand, and plenty of diamond.

Craft diamond armor — iron armor might also work in a pinch, but diamond is definitely best. Enchant your helmet with Respiration so that you can hold your breath longer, and enchant your boots with Depth Strider so you can move faster underwater.

Bring a sword — diamond is best, especially if it is enchanted with something offensive like Sharpness. Bows don't work great underwater, but bring one with plenty of arrows anyway in case you need it.

Crafting potions at a brewing stand is pretty much necessary to deal with the Guardians and Elder Guardians. Bring these potions:

  • Potion of Water Breathing: Lets you breathe underwater.
  • Potion of Healing: Restores health.
  • Potion of Invisibility: Makes you invisible to the mobs.
  • Potion of Swiftness: Helps you move underwater.
  • Potion of Night Vision: Lets you see better if sea lanterns are not plentiful.

Bringing a bunch of signs is also a great idea. Placing signs on walls will create an air pocket where you can catch your breath between battles.

What does an ocean monument contain?

Why go to all the trouble of enchanting tools and brewing potions? Treasure! Ocean monuments contain eight gold blocks at the center; each block contains nine gold ingots, so that's 72 gold ingots in total! If you're in the business of creating a railroad, this will certainly help with powered tracks.

Ocean monuments also contain sponges, which can be used to absorb water blocks to help dry out ponds, lakes, or larger areas where you'd like to build. Sea lanterns can be mined with a tool enchanted with Silk Touch, and you'll receive plenty of prismarine blocks and prismarine crystals.

Are you up to the challenge?

Do you actively search for ocean monuments? Lets us know in the comments section below!

Cale Hunt
Cale Hunt

Cale Hunt is a Senior Editor at Windows Central. He focuses mainly on laptop reviews, news, and accessory coverage. He's been reviewing laptops and accessories full time since 2016, with hundreds of reviews published for Windows Central. He is an avid PC gamer and multi-platform user, and spends most of his time either tinkering with or writing about tech.

22 Comments
  • How to walk in Minecraft ?
  • press W
  • Where is W?
  • Keyboard?
  • By moving forward, bro
  • Use creative mode to drain the entire ocean and temple.
  • Definitely don't do this if you care about achievements. Once you change a survival world over to creative, it's permanently sullied: achievements can no longer be unlocked.
  • Cool, never seen one. :)
  • Will the update generate a monument in an existing world/realm or would a restart be necessary?
  • It will generate it in an existing world in ungenerated chunks (i.e. places you haven't explored yet). Any place that is already generated cannot retroactively receive a monument.
  • Ah, thanks. There's quite a bit I haven't explored yet
  • Thanks for these useful tips! :)
  • One thing I don't understand is why is the Windows 10 Edition still called beta? :D
  • I don't either since it works flawless, even multiple gameplay with pe.
  • Likely because it doesn't have feature parity with the Java version.
  • Neither has Pocket Edition, and it's not called beta. But yeah, I guess you're right.
  • Actually you make a good point too. I was simply making an educated guess.
  • You failed to mention the #1 most useful tip. Bring cows. Milk cures mining fatigue which allows you to tear apart the temple to get at things more easily. Also, I bring 4 or 5 stacks of sand to help clear water, as well as pressure plates in addition to signs. Filling rooms with sand, curing the mining fatigue, then clearing sand allows you to control the battle and not fight underwater at all.
  • I did not realize sand blocks soaked up water. Makes sense. I'll have to try that next time
  • It's not that sand soaks up the water, it's that it displaces it. And you can drop it into areas to remove the water. But that method only works if you can easily cure the mining fatigue because removing all that sand and reusing it would take far too long otherwise.
  • Excellent tip - totally forgot about milk!
  • Yes silk touch. Lesson learnt