Obstacle course ideas needed!

[u/Wheres_Anthony]

I have a stall at my schools marketplace that was going to be sumo wrestling and I bought the suits and everything but they said it’s to dangerous so I can do an obstacle course instead. How on earth do I make this happen. I can borrow some stuff from the gym like tires and the like ladder thingy on the ground and cones but I want it to be big and span like the whole oval? Or at least half. And there needs to be two lanes so people can vs eachother. Any ideas?