We have just fount this fantastic Go Karting Track near San Javier Airport. It seem to be very popular but if you go down around 6pm it is a bit quiter. It has 4 different sized go-karts so you can find one suitable for your level of driving even young children.
It also has a nice area where you can have a cold drink and watch and even take in a game of pool or darts.
Go Karting Mar Menor for a family day out.