on Jan 21st, I visited Happy Hollow Park and Zoo in San Jose, California and came across this fantastic experience design example. A deep subject sliced interestingly with a practical for kids. I liked it.
Here is the site. I am not capturing the details interms of how many kids can play at a time, tools given to the kids and area etc.
One more thing I liked abut the zoo was different surfaces used in landscaping. Below is an image, showing three different surfaces. I like the blue surface which is bouncy, reacts more and fun to walk. Again a good detail.