The light exhibition that wasn't...

Our grandchildren were dropped at 7:45 yesterday morning.  They were rather lack lustre, still suffering from jet lag after a flight back from Vancouver.  They were happy to curl up on the sofa until we set off down to the embankment to see a light display.  The display was most disappointing, quite a lot of the exhibits were turned off and noone seemed to know why.  Back home after a  snooze on the train and the rain still pouring.
The photo shows a geodisic dome by light artist Jakob Kvist