I got a little playhouse from Facebook and she loves it. Plastic seesaw , sandpit, bubbles, small pool, car, tunnel, tent and as above someone is building us a mud kitchen. Even just a tufftray with water/balls and they’ll happily splash about. I do have a castle with a slide too which she loves and has just learnt to climb the stairs of but maybe not the best thing to learn at this age 🤦♀️
We have a pikler triangle (tp toys) and some softplay blocks (smyths toys) he can't walk yet but he can climb things pretty well and both can be added to as they get older. I might also get a sandpit/paddling pool.
Paddling pool for the nice weather, bubble machines are always good fun, a little watering can would be good, as they get older they love to “help” so can water the plants with you. A tuff tray or something you can do some messy/sensory play in. I’m planning to get a mud kitchen for her first birthday, she’s probably a bit young for it but her big sister will love it and I know they’ll get lots of fun out of it! People are always giving away the little tikes car or similar for free, all the kids ages 1-4 love those things at playgroup!