People taking part in the Thames Diamond Jubilee Pageant in June have been testing the water.
Forty-two recreational boats are due to be among around a thousand vessels taking part in what promises to be quite a spectacle. Our reporter Carolyn Sim went to see how plans are coming along.
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The unlicensed events unfolded on Saturday night at Clapham Common and Tooting Bec Common.
A 37 year old man who was taken to hospital after getting into difficulty in a stretch of water near Maidenhead has died.
Jonty Bravery, who is mentally ill, has been jailed for 15 years after throwing a six year old boy from the Tate modern balcony.