Thank you for the picture. I must admit that this view is really closer to the BG1 map : BG1 Full map We had in the same area Umberlee Temple, the Harbour Master and the Low Lantern, and the tattered sail is a strong clue indeed ! So maybe the map is a mix a BG1 mp and the official new map... and city geography might change a lot and is not a solid ground for my first deduction (for example the Blushing Mermaid was in the upper city in BG1 and in the Lower City in thje modern map !) Actually I feel a little lost, and now I think (and hope) you are right about the Low Lantern ! (concerning the point of view of Astarion and the group from the boat it is just before this image, around 1'47)
