Enchanted Woods - Winterthur Museum, Garden and Library in Delaware. there's a huge beautiful garden, and a whole enchanted woods with little wooden faerie houses and messages from the fae snuck in places.
"Bamboo spiral: This gives an unusual auditory experience to anyone who ventures into the ‘forest’ of hanging bamboo poles - a version of surround sound!" - Sounds and Senses ≈≈ it's like an enormous wind chime.
Awesome 40 Creative and Cute Backyard Garden Playground for Kids https://decoremodel.com/40-creative-cute-backyard-garden-playground-kids/
12 idées créatives pour un carré de sable épatant!
12 idées créatives pour un carré de sable épatant! - Brico enfant - Trucs et Bricolages
DIY Turn PVC pipes into a playground musical instrument. I wish this had the instructions with it, but I might be able to figure it out. This might even work as a service learning project for the playground
I like this idea, maybe could use more shallow water tubs thought. A big rive-like pool for water play. Kids can crowd around both sides of the pool. Also can learn how things travel from one end to the other