Riverside hub in Northampton all day long! So many things for babies
Playhouse in Milton Ernest is very good, the baby bit rubbish but the toddler bit was great and wasn’t too busy when we went with my LO at similar age I think
Soft play at John Bunyan centre, it’s not huge so great for that age and it has a relatively good baby bit, plus under 1s go free! X
Kids world do toddler mornings which tend to be quiet and they have a under 3’s area with lots of bits in there and a little sensory room with lights
We like snakes and ladders in Dunstable if you’re able to get there