Looks like the biggest playground for adult children: The newly opened Tempest Freerunning Academy.
Click play or watch it on YouTube:
Tempest Freerunning Academy is California’s first and only training facility solely dedicated to the growth and spread of freerunning and parkour. Developed by the founders of Team Tempest and X-Games course designer Nate Wessel, our facility offers a real-world environment where you can learn everything from the basics of parkour to the advanced maneuvers and tricks of freerunning.
more on tempestacademy.com