The group, coming to an agreement asks where to meet that boat, and the Mayer leads you to another door that opens up to a set of stairs going down. The corredor that the stairs are in is dusty and musty (hey, that rymes!), but has a well used look towards them. The group makes their way down the stairs... and down, and down, and down, until they come to bronze double doors at the base. Opening them, they are greeted by the glowing lights of many torches, lanterns and other glowing object that are used to illuminate the continuous darkness of the lower city. The true city, for it's much larger then the town above! It's plainly appearant that this is where the wealth of the town is, and those above are the slum residence.
In front of the group is a large stereet with many people crowding it, moving on assorted bussiness. Mainly human, though other races are present, including, but not limited to orcs, goblins, ogre, elves (few of these). lots of dwarves and gnomes, and a smattering of other humanoids and demi-humans. This street is lines with shops of every discription. Looking up, the ceiling of this cavern is lost in the darkness, even to those with infravision and/or ultravision.
Off in the distance, down the hills of the street, the city appears to just end in docks at the base of the island that it appears to be built on. You can see the dock that is your destination from where you stand, and can even pick out the ship that the Mayer told you was waiting.