Daytower is the eastern edge of the Sundom, located directly north of the gate of the same name. The climate of the area is much like that of the rest of the Sacred Lands, leaving a thin layer of snow over much of the area. Daytower's elevated position offers a good view of the surrounding valleys.
Currently, the settlement serves as a trading post and waystation, marking one end of the Way of Broken Stones.
The Red Raids
After the Red Raids ceased due to the overthrow of their instigator, the 13th Sun-King Jiran, his successor Avad appointed Balahn, a Carja captain, as the commander of the outpost. He instructed Balahn to ensure the respectful treatment of the Nora by the Carja military, a task which Balahn performed conscientiously and willingly.
The outpost was also the station of prefect Zaid, another Carja captain. But unlike Balahn, Zaid had been an active participant in the Red Raids, commanding a unit that had frequently invaded the Sacred Lands, and raided Nora settlements. Zaid had garnered a reputation for particularly egregious cruelty in these raids; in a raid on Mother's Rise, he brutally murdered and mutilated the father of two siblings. With the end of the Red Raids, all personnel who had been involved were expelled from the Carja military, but Zaid managed to avoid this by covering up his involvement and thus was appointed as a prefect and stationed at Daytower. Years after the raids, however, he was killed by Nakoa, the daughter of a Nora man he had murdered.
A Seeker at the Gates (Main Quest)
When Aloy is made a Seeker and tasked with traveling to Meridian, she discovers that the gate leading to the outpost is closed on Captain Balahn's orders following the spread of corrupted machines through the Sacred Lands. Indeed, two such machines appear at the gate, along with the cause of their corruption: a heretofore unknown machine that came to be known as a Corruptor. Aloy prevails in battle and ultimately persuades Balahn to reopen the gate for her passage.
After speaking with Solai in Mother's Crown, Aloy will ask Balahn whether Nakoa passed through Daytower. Balahn reveals that Nakoa attempted to kill Zaid, who is stationed at Daytower as a prefect. Balahn suggests Aloy speak with Zaid to learn more about the incident. While he denies any knowledge of Nakoa's current whereabouts, Zaid will suggest that Aloy check Lonesome Rock, where he heard reports of bandits abducting a young woman.
On the advice of a Carja soldier, Aloy speaks with Captain Balahn regarding the road to Meridian. After warning her about the dangers along the way, Balahn requests that she make a quick trip back east to find a missing cohort he sent to investigate the corruption, in exchange for information about the Sundom. After asking Balahn what she wants to know about the Sundom, Carja-Nora relations, and Olin, Aloy agrees to look for the missing men.
Ohtur, one of the three quest-givers for Into the Frozen Wilds, can be found in Daytower, as long as neither of the other two have been spoken to already. He is also found here following the completion of The Hunters Three.