The Drift Bar is based at the bottom of the Heron Tower on Bishopgate near Liverpool Street. It is a nice, light two floored venue with quirky interior, including a private aquarium rather randomly!
The venue is reasonably priced for beingin the Heron Tower and the service has been good when I have visited. Good selection of cocktails and wines to choose from. Good for a date night or a dinner with friends. Look out for offers on food on Open Table too!