My son is in a leg cast with a walker is this something he would still be able to do? Enough space to walk around ?

Absolutely! There is an elevator and ramps. Open spaces and plenty of room for him to walk at his own pace

Sorry to hear about that. They have elevators and ramps to accommodate for him. Have fun!

He should be able to get around. Might not be able to do the cycle ride though

He should be fine