If you aren't sick of fireworks by this time just, this is possibly the most dangerous and amazing of all the public shows in the capital. · River barges are piled high with explosives and set adrift on the Thames with several brave men on board. The fireworks are let off between Waterloo and Blackfriars Bridge, not far from the scene of Guy Fawkes' attempted crime. · Wrap up warm and head for the river. · The best vantage points tend to be around the Embankment and Gabriels Wharf. · If you are really on the ball get there early and grab the best seats in the house in the public gallery of the Oxo Tower. Ceremony of the Keys · Every night the Tower of London is locked up by the Chief Warder who makes his way to the gates from the Byward Tower at exactly 21:53. · Once all the Tower gates are locked, the Last Post is sounded by a trumpeter and the ceremony is concluded.