Use the teleporter at ( 756, 341, -1326 ) /waypoint 756, 341, -1326 to travel to the Tower of Awuidor. -- if you stay left you can avoid the trash
Swim up the water column to the top to clear the mobs up top.
Clear the mobs to spawn and Kill the emissary of the sink on the second level of the tower (Swim down to ( 1, 495, -1294 ) /waypoint 0.71, 495, -1294 to spawn Glaucos of the Sink at the top of the tower.
Re-enter the water shaft and swim to the top of the tower at ( 2, 631, -1252 ) /waypoint 2, 631, -1252, then kill Glaucos of the Sink.
Glaucos has a trauma that causes a large power drain. Cure it quickly.
Use the teleporter at ( 2, 631, -1252 ) /waypoint 2, 631, -1252 to access the south water tower. -- if you stay left you can avoid the trash
Nehalenea has an elemental that causes a large power drain. Cure it quickly.
Nehalenea Frostbringer says, "Oh, who wants to dance?" then she calls the adds with "Come my children, there are dance partners for all!".
Named and adds should be on different targets for a small moment and/or at least all 3 directly targeted (one on each at least), if an add doesn't find a "dance partner" they emote "I cannot decide who I want to dance with." which triggers "Stunning Dance" that deals 50mil damage for each add that doesn't have a dance partner.
Use the teleporter at ( 2, 630, 1184 ) /waypoint 2, 630, 1184 to access the East water tower.