Thanks for the advice most of the reviews I have read say the same really. I will have to look for something else to do then I think, they don't want to go to anymore musuems and have done alot of walking we did think of taking them to see Oliver but tonight would be the last night and the tickets seem really expensive or maybe I am being too stingy.
Take a water taxi from to the O2 and have a meal there. Tis fun going along the Thames like this and not tiring at all as you're not walking. Lovely boat trip back again in the dark too, seeing all the lights and there is a laser marking the Greenwich Meridian which is cool too.
you can probably get cheap tickets for a show at the ticket booth in leicester square. restaurants in the 02 are awful, but the boat down the thames is nice, you could get off at greenwich and have a walk round the market