Rainy day meet up nr Sheffield/Doncaster

[IWasThere4Aug12]

2DS (8&6) we're meeting grandparents for the day and the forecast is terrible - can anyone recommend anything to do indoors? The closer to M1 or A1 the better TIA

Cannon hall farm is brilliant for kids, a full day out and loads indoors.

Oh, or magna in Rotherham, literally just off M1 junction 34, near to Meadowhall.

Thx