Any decent map such as open source ones, confirm this is The Queen's Walk, a broad promenade along part of the famous and bustling Pool of London section of the Thames. The view snaps City Hall to Saint Paul's Cathedral, London in very late afternoon sun.
<a href="//commons.wikimedia.org/wiki/User:Sudzie" title="User:Sudzie">Sudzie</a>
<span class="int-own-work" lang="en">Own work</span>