Look at center parks as they're child friendly aswell as adult activities too
Airbnb somewhere like the Cotswolds or Lake District. Means you get your own room from toddler and he has lots of space to run around outside.
Centre parcs would be great for keeping your toddler busy! I don’t know if you’re near the Cotswolds but it’s my favourite place for a staycation. I’ve seen a farm park where you can stay which looks lovely and would be a great experience for little ones x
Sounds lovely, I’m following as love to know too! Our last weekend away with our toddler was at Butlins (we got a really good price off peak season) which my toddler absolutely loved with all the shows that were on (but was when I was only 3 months pregnant) - though we only booked a standard one room, next time I go I would look into a bigger/nicer room as we went back to our room for naps