Hi Whirly. It is located just outside the Tate modern. The Tate is oppposite Blackfriars train station. From there you head over the bridge and it is on the river walk down to your left. It is just by the millenium bridge that links the south bank to St Pauls. I am sure someone can put a map up here, belive it or not, I can't remember how its done..!!
Good luck with the dawn to dusk
