Take the A10 from Cambridge towards Ely. Keep on the A10 bypass around Ely; Littleport is a few miles further north. As you approach Littleport, you will reach a roundabout with a sign to Grange Lane. Continue straight on (second exit) at this roundabout and then turn right at the next roundabout (third exit) towards Littleport on Wisbech Road. Follow this road for almost a mile and then turn left onto Camel Road. After around 200 metres there will be a left turn towards the Sports Centre. There is free car parking on site.
Littleport also has a railway station, which is on the line that goes from London to Kings Lynn via Cambridge.