Mr. Cannon
Yes, the Seaport District can get flooded with tourists but we found your new hideout. Enter Mr. Cannon behind Cannon's Walk (duh) and be transported to an “underground” lounge decorated in dark colors and textures. Highly recommend the Longshoreman or the Earth & Elegance (or really anything else on the cocktail menu).
Mr. Cannon, 206 Front St.
[Photo via @jailene_villa]