I am really thrilled to say I have a whole weekend in June when I will be babysitting my two grandsons, who live near Spalding. I have a car (and will have their car seats too). I shall be with them from 23rd June until 25th June. I do not know the area very well at all, so am asking for your top recommendations of things we can do together either in the sunshine, or, more likely, when it is raining. The boys are aged 7 and 5. Looking forward to hearing your favourite recommendations.