South Bank & Waterloo
There are simply oodles of things for families to do on South Bank in London. Visit the Coca Cola London Eye, SEA LIFE aquarium, The London Dungeon, the BFI IMAX and the Southbank Centre are all in close proximity.
It is also a great place to find good food, as Oxo Tower Restaurant is right there, offering wonderful views of the London Skyline and the rolling River Thames. If you plan more than just a day visit to the area, then there is a good choice of hotels close by.