First - 400xp for everyone.
On the second day (the day Nisoru departs) you are given a brief tour of the upper levels of the temple. There are art studios, meditation rooms, counseling rooms, offices and an observatory, with what Tessa is sure is a pre-War of Technology telescope.
On the third day Shun Quan and two junior acolytes give you a tour of the lower portion of the temple. There are numerous birthing suites, extensive store rooms for food and drink, a treasury and a magical store room. You pass two barred doors and Marina pointedly asks what is behind them. Shun Quan says one is the dungeon and the other is the archives.
Uther is confident there is another level below you, likely a hallway from each of those doors.