hi gemma, i've been a couple of times to the Kent one with my kids. It suits a wide age range but is quite pricey to get in! At 5 he could go on several of the diggers independently, usually with a guide to help with the movement of the scoop etc. theres also some car rides/ truck rides which go over very bumpy ground!A little train type ride too. He could probably sit on your lap for bigger rides. A fun day out , we came home absolutely filthy!!!!