After a safety briefing youll board your custom built thames rocket powerboat heading upstream from the london eye see the houses of parliament before racing back down to tower bridge and canary wharf with unrivalled views of tate modern st pauls cathedral and the tower of london along the way your experienced skipper knows lots of stories about the layers of history that have built up along the river and hell entertain everyone as you whisk around in 360 degree spins he can tell you a