Assassin’s Creed Odyssey has 42 Underwater Locations for the Child of Poseidon Trophy and Achievement. You must complete all of the underwater locations by finding the sunken treasures in them. Use your eagle to mark the underwater treasures. Be sure to clear out the location so it shows a checkmark on the map or else it won’t count.
Below is a map with all underwater locations on it as well as zoomed-in images for greater detail. It doesn’t matter in what order you do them, they are accessible as soon as you unlock the ship in Sequence 2 of the story. You can click on the images to view the full resolution version.
Underwater Locations Map
Underwater Locations 1-5
Ktesipo’s Shipwreck
Islet of Zeus
Poseidon’s Fury
Sunken Temple of Demeter
Ketos Shipwreck
Underwater Locations 6-10
Alekto Shipwreck
Ruins of Arne
Persian Remains
Purrhos the Red
Underwater Cavern
Underwater Locations 11-15
Sunken Temple of Aphrodite
Smuggler’s Shipwreck
Stormfall Bay
Shark Bay
Prototype Trireme of Ameinokles
Underwater Locations 16-20
Aruabignes Shipwreck
Phoibean Lagoon
Phaleron Sunken Harbor
Vouliagmeni Sinkhole
Underwater Cavern
Underwater Locations 21-25
Submerged Minoan Palace
Aigisthos Palace
Shipwreck
Nereides Monument
Olympic Shipwreck
Underwater Locations 26-30
Underwater Ruins of Dyspontion
Shipwreck of Nestor
Dorion Underwater Cave
Pavlopetri
Sunken Wreck of Datis
Underwater Locations 31-35
Ruins of Seas People
Shipwreck of Ajax
Palace of Amphitrite
Anaphi Shipwreck
Sunken Temple of Eileithyia
Underwater Locations 36-40
Cave of Wealth
Sunken Ruins
Shipwreck Cove
Hermit’s Dive
Polydektes Lagoon
Underwater Locations 41-42
Wreckage of the Lost Bandit
Shipwreck of Dionysos and the Pirate
That’s all the Underwater Locations in Assassin’s Creed Odyssey! This unlocks the Child of Poseidon trophy or achievement for your efforts.
I Love You for your amazing work! Thank you so much!
if you want to make it a bit easier you can acquire a legendary spear called: “Poseidon’s Trident” which has the legendary perk “Breathe Underwater”, the said spear can be found on an unnamed island between Samoa and Chios and to the right of Andros but beware as its being guarded by some high level lions
*Between Samos and Chios, sorry
I need key to open some , where is the key?
Submerged Minoan Palace chest. Complete some certain side quest given by Xenia the pirate north on Keos island and she’ll give you the key.
Sorry, not Xenia, the quest name is We Are Not Thieves.
You are the best dude, just got platinum trophy. Thanks!
I archived all 42 locations above, but can’t get trophy. Do I have to clear some quests in underwater locations?
I have the complete map unveiled, but it doesn’t show me all underwater locations.. Will follow the guide, I guess..
where is the key to the sunken temple of aphrodite