We're due to arrive in London tomorrow at 11am (KX) for a one night trip (heading back late Monday evening). DH and I are bringing DS1 (8) and DS (4). Can anyone recommend any must-do's for our trip? On our potential list I've got the natural history museum, the science museum, the London eye, Trafalgar square, Buck palace etc. We're staying on the Southbank and will probably want to head to the hotel at around 8pm on Sunday evening. So, if you were me, what would be your perfect itinerary please? (No obligation at all to stick with my suggestions!) We can spend within reason but would prefer not to blow a fortune if possible! Very grateful for suggestions for the perfect Sun / Mon based on the above! Thanks!