10k lap from Lower Thames Street. Head towards Westminster, past the Houses of Parliament, down to Vauxhall Bridge and back up South Bank. Finish with crossing the 'wobbly bridge' and then back to Lower Thames Street.
Head past the Tower of London, track the river to Canary Wharf, take the old Victorian Greenwich foot tunnel under the Thames and return back along the south side of the Thames. Finish up with crossing London Bridge and then back to the City.
