4th Birthday - last minute change

[Mumofoneandanotherontheway]

Hi!!
So it’s my LOs 4th Birthday next week and he wanted to go to legoland... weather is showing as raining so now thinking to do something else... but don’t know what

Any suggestions in & around London/Middlesex area

Many thanks x

Would he be old enough for Kidzania? I think you can sometimes get it on 2for1 with National Rail vouchers.

Oh, and it's in London - I think one of the Westfields but check.