I discovered this place when going for a walk along the Thames. It's a pub called The Banker and has a staircase access to the Thames. In the summer when the tide is low, it's nice to grab a drink and go sit under the bridge and get some quiet with just the sound of the waves and boats passing. Nice and quiet!
If you are in the City Centre and wanted so quiet time it's nice here. The food is delicious as well. The interior have old bunkers and you can sit in the coves. Or sitting outside is nice in the summer.
Check online when the tide is low
Mon: 11:00-22:00
Tu-Fr: 11:00-23:00