This really is fab! It's so quiet compared to the Science Museum in London; it's great fun; spacious; varied; excellent helpful staff;
free lockers to leave your stuff; not great food - but loads of places you can eat your picnic;
Loads to do and see - we spent 6 hrs there today, and only went in 2 of the 5 sections.
Last time we went we came back full of enthusiasm, but it's taken us nearly 2.5 yrs to manage another visit! I wish we lived closer.