One of the first challenging event that Marine Corps recruits face is the obstacle course, also called the O-Course, or the Tarzan Course.
It looks difficult, at first, but there’s a technique to it.
Your drill instructors will show you how to navigate the course, and then you’ll run through it. Twice.
Every O-Course in the Marine Corps is similar.
It’s built on a mulch landing area to help prevent injuries from falling.
Here’s the breakdown.
The obstacle course alternates low obstacles with high obstacles. Between every obstacle is a low log, about three feet high, to set the pace.
The course starts with clearing a low log. Just bound over it.
High Bar. A steel bar suspended at about eight feet.
There are two methods for clearing this obstacle.
“Chicken wing” one arm over the bar, kicking the other leg to provide momentum, or—
“Ricky Recon”, a swinging pull up where you kick your legs up and over the bar from the backside, flipping your body over the bar and flinging off it like a ninja.
The recon method is the fastest.
Incline Bar and Traverse. Climb on top of the low log, use one leg on each bar, push yourself up, then travel down the slope until you reach the log.
Then climb on top of the log like a balance beam and continue forward.
At the bottom of the traverse is a high log, you’ll jump chest to log and swing your legs up and over the top.
Wall Climb. It’s an eight foot tall wall that you need to clear. You’ll have to jump, do a muscle-up to get on top of the wall, then swing your legs over the top.
High Log. This one is chest height. About five feet.
Weavers. This is a series of high logs. Drill Instructors usually want recruits to pass these alternating sides. At each log you send your legs to the right, then the left, and so on. There are four logs.
Double Bars. This is another high bar obstacle, but with two bars.
You’ll have to use one bar to pull up to the second bar, pull your body over both bars, then down the other side.
Sprint to Rope Climb. The course ends with a 20′ rope climb. At the top, recruits must touch the top log, then shout their name and Platoon.
When done, recruits will run back to the beginning and jog in place until it’s their time to navigate the course again.
Check out this video from Marine Corps Officer Candidate’s School on running the obstacle course. Notice the recon roll over that first bar!