Concept of green square in my pavilion

This is my concept of my green square in my pavilion. I want it to be a square where people will relax but also have opportunity to spend this time in an active way.
That's why I putt some of the outdoor gym equipment for people so they can use it whenever they want, and by it doing something good for itself.
My green square will be madded of artificial grass as real grass will have no chance to survive. But trees and plants are real and was choose for people benefits.