As promised, the second hidden gem of London! St. Katharine Docks dated all the way back to 12th century and remains open until today with a few redevelopment, of course. It's a quite popular leisure area with offices, public and private housing, a hotel, shops and restaurants and the famous pub The Dickens Inn. We had lunch at Ping Pong for some Asian taste and it was pretty good.
I'd say this place is worth a visit and even a must since it's a merely 5 minutes walk from Tower Bridge. The boats and the piers scenery are a welcome change and I didn't notice that much tourists in this area. Mostly locals who work in the area.