>> these people are looking to do something completely out of the norm. we teach them the safety requirements. we teach them what they're going to be doing. >> reporter: then the ultimate test. an obstacle course where participants scoop, push, and even bowl. sometimes with great success. and sometimes not. i'm on the challenge course and they tell me this is the easiest move, trying push this tire into the parking spot. it's pretty tough trying to figure out how to operate this thing, but a whole lot of fun. >> you can't reach that tree. >> reporter: jason and alisa also own a site contracting company and use heavy equipment all the time. one day they decided to share the fun with industry peers. >> we brought a group out to our shop, had a cookout. we decided to put them on a couple pieces of equipment. they had the afternoon of their lives. we realized we were on to something. >> reporter: less than a year old, the business may soon be on the move to other cities. but playing in this sand box isn't cheap. you can drop between $200 and $800. but for now -- >> am i going to knock this yellow thing over? >> reporter: -- they're focused