crikey, that’s no walk at all – definitely not worth getting a bike for – by the time you have unlocked it, got it down from the rack and locked it up at the other end you would be 3/4s of the way there if you were walking.
Takes me 30 mins to get to Trump street at a non-slacking walking pace.
You are going to be about 20 mins, maybe faster if you got straighter than walking by the Thames, but you would miss wandering past the skateboarders on the south bank, the pretty blue lights laced through the trees, and the retro caravans selling mini-doughnuts and waffles.