The sewers are the best mode of undetected movement within the city. There are those who choose to travel above ground and although it is not discouraged, I do not advise our newer members to brazenly set forth above ground without knowing the sanctity of the sewers. Used for covert operations within clans and a safe haven to lose unwanted company.
The sewers all connect to a dozen portal sites in the center of the city. Each clan has access to their lair via the sewers, be advised that they are heavily guarded. Stray not into unfamiliar territory or suffer unwanted attention.