We are on holiday right now and it would take 1hour for us to get to London. St Pancras/ Victoria train station. Would you please me tip for a day tour in London with kids age 8 and 6. We could do weekend or weekdays, so which day better for attraction? Does museum have long queues? Science/ natural history to get to? We could come back as late as possible. Ant day trip iterinary would appreciated in this school holiday time!