Monkey bars are amazing!
"Climbing, swinging and hanging build our upper body strength and core muscles which are essential for developing fine motor skills. Twisting, turning, dangling and swinging develop flexibility and agility in the shoulders, elbows, wrists and fingers. Pushing, pulling, tugging and lifting build strength and an intuitive understanding of simple physics such as weight, pressure and resistance." A Moving Child is a Learning Child. By Gill Connell & Cheryl McCarthy.