In thinking about the playground that I visited, and looking at it through the lens of the Seven Universal Design Principles, I began to imagine some of the improvements that could be made to the space.  Fortunately, others have also had similar ideas so there were a plethora of examples that outline and show how parks and playground spaces can be envisioned to be made accessible and 'user friendly' to all students.  

The simple motion of a wavy surface such as the one pictured above can provide entertainment for all children.  It's like a mini-rollercoaster for a wheelchair and permanent wave for feet.

The park above included swings that are tempting for even adults to sit in.  Specially designed and harnessed for students with limited mobility, they can also be used by fully-able bodied children as well.  I'd even be tempted to sit and swing in one, definitely an upgrade from the cracked leather slates of the swings in my youth.

Even cooler.

It would be important to ensure access to all areas of the playground to those in wheelchairs or with limited mobility.

At the end of the day the hope is that all children, big, small, walking, immobile, learning disabled or typically developing have spaces that allow them to just be kids.