Here are some great websites with information about what to do in London and Hull for kids. Ask your parents to look at these websites with you before your trip.
Trakkies - For kids who love trains
Visit London: Kids
Natural History Museum
London Eye
The Tower of London
British Museum
Science Museum
Real Yorkshire
The Deep Aquarium
Speedboat Rides on the River Humber
Spurn Light Ship, Hull Marina
Hull Arena (Ice Rink)