Hi Olive. I posted above saying Alton Towers didn't have many rides for littlies. Having found ourselves in Alton Towers with our 12 year old lad and 3 year old grandson only yesterday I would like to revise my advice. The 3 yearold loved all the old Macdonalds farm rides and if he had been a little older he would have liked the teacups (now barrels) the beastie roller coaster and the mini pirate ship. There is also the Charlie Choc Factory ride and the mini driving school would be a hit with a five year old. Obviously far more rides for littlies than when said 12 year old was 5. The draw back is that the adults will have to pay the eye watering adult prices to get in and probably not go on the rides. There do seem to be lots of vouchers about though, try the various money saving/voucher sites.
BTW if you do get a chance to go on adult roller coasters, the new 13 ride is good, but my favourite is still Air.
have a fab time.
mel