Runners will get a chance to take on the same obstacles Marine Corps recruits are trained on: trenches, log hurdles, tunnel crawls, push-up stations and a six-foot wall.

MCRD is hosting its 21st annual Boot Camp challenge that allows the public to participate in a three-mile obstacle course that is endured by USMC recruits.

About 3,000 people are expected to try their hand at just that Saturday morning as they join 60 Marine drill instructors for the 12th Annual Boot Camp Challenge.

In the quest to become a Marine, you’ve got to hit the ground crawling.