A City in Need of Heroes
This region of Neverwinter stands largely intact in the wake of the cataclysm. Credit for the survival of the Blacklake District goes mostly to the nobles of Neverwinter who dwelt here and constructed their homes with extra support, both material and magical. Many of these nobles died in the fire that swept the area after the cataclysm, but their houses remain. The district holds a large number of overgrown estates, scores of stout, defensible holdfasts, and a large park that contains the lake for which the region is named. The water was polluted by a great deal of ash and rubbish in the quake, and today Blacklake looks more like a midden pit of sludge than a lake. Some locals are making an effort to dredge it and restore the surrounding environs.
Source: Neverwinter Campaign Setting, Wizards of the Coast, 2011