Went today with my 4yo and 22 month old. The 4yo adored it. The 22 month old found it a little tiring by the end.
Highlights for the 22 month old:
The train on the mobius ring (he spent ages watching that, but was wayyy overdue for his nap)
The baby animals farm
The light switches in one of the exhibits
The ball pit near the animal farm
The airhockey style table next to that
The squeezy sauce thing he had with his sausage roll for lunch
There's also a little playground set up for 0-3s, but he was too stuffed to actually enjoy that. He also liked the fish in the fish tank.
It was quite busy today. It would have been nice to take him during the week, but we had a family pass for Christmas so my husband could come too.