Apart from the Zeus Trial, the other most challenging Trial as part of the newly added Atlantis update is the Sunken Trial. This Trial is about remembering a particular pattern on the slab and replicating the same pattern code under a water passage. So, if you are confused about this specific Trial in Atlantis, here is a detailed explanation.
To start the Sunken Trial, you have to go past the Merchant store and find a temple-like area. Alternatively, you can use this GPS location of (-4615, -596, 1843) to reach the location. This is the entry point of the Sunken Trail Area.
After entering the Sunken Trial, you will find a Stone stab with strange symbols on it. Screenshot this symbol as shown in the above image, as we need the same order for later.
Now, walk down the Sunked Rod Trial passage area to find a small diving area. If you only have beginner gear, you must save up to C$15,000 to get an Advance Diving Gear from the merchant right outside the central Atlantis spawn area, as you cannot survive in this water maze without one.
Equip your Advanced Diving Gear along with flippers and make a jump. Since the water passageway has many routes, I have given the exact GPS location, i.e. (5140, -667, 1730) of the chamber where you have to go. So, carefully monitor your oxygen level and reach this location.
Here, you will find several symbols similar to the one at the start. Pull out your screenshot and press the exact symbols on the wall. The order should be from left side to right (original slab).
Once you have pressed everything, you can return to the original slab location. Repress the same symbols in the same order on the slab to open the Sunken Depths Door at the end of the Sunken Trail passageway. Enter the door to find a small fishing spot and the Tempest Rod to the left, which can be purchased for C$1,850,000.
Below, I have provided the stats of the Tempest Rod in Fisch. Go through it, and if you like it, you can spend the above-prescribed amount to get one.
For more on Fisch, Check out How to Complete the Zeus Trial in Atlantis (Zeus Rod) – Fisch or How to get the Champions Rod in Fisch (Atlantis Update)
