I recall having seen previous MN threads about the London museums getting horrendously busy at half-term. Would like to visit the Science Museum on 4 November, the last Sunday of half-term. Will we be faced with massive queues to get in? If so, how early would we need to arrive to be near the front of the queue? Or would it be better to actually arrive at lunchtime rather than in the morning? Any advice appreciated, but the one thing we can't do is alter the date of our trip. TIA.