The duo climbed vertical suspender ropes to access the main cable, which they then walked along to the north tower, where they performed a number of insane antics that can be seen in the video below.
A video on social media shows two 18-year-olds from Wisconsin running up the bridge's frame.
As if climbing the iconic structure wasn't enough, the duo also made a decision to dangle from the cables and hang off the edge of one of the towers.
He told KPIX 5 that it took about 10 minutes to climb to the top of one of the bridge's famous towers.More news: Apple Fixes Dozens Of Serious MacOS, iOS Flaws
In a Facetime conversation with ABC 7's Lyanne Melendez, Teatime says that he and pal Tommy Rector didn't come to San Francisco with this particular feat in mind.
The daredevils said they would be willing to consult with officials on how to improve security. They wanted their stomach-churning video to drive traffic to their YouTube channel. "It's really tight. I have a lot of experience with stuff like this so I was able to get around and get on the cables".
A news conference was held at 1 p.m. on Tuesday to discuss the investigation into what happened.
The Golden Gate Bridge, Highway and Transportation District was none too pleased about the action of these hooligans.More news: Olympic Gold Medalist McKayla Maroney Shows Off Thong In Instagram Video
Mulligan says either of the men could have slipped and fallen, which could have caused injuries to both the men and drivers below.
"We will be taking steps to prevent this from happening again".
While there are hundreds of cameras on the bridge, the cameras are set up to protect against terrorist attacks and protecting the structure, according to Mulligan. "It allows you to look over the entire security plan for the bridge". At this point, it's unclear if the men will face charges. "The Golden Gate Bridge is not an amusement park ride", he says. But people have trespassed despite these measures. They even hang off the railing with just one leg on top of the 745-foot bridge without any fear.
Separately, last month, work began to install a stainless steel net under the bridge meant to prevent suicide jumps. The last time someone conducted a similar incident was four years ago, and the individual involved lost their job and was added to the no-fly list.More news: Lenovo announces Moto C and Moto C Plus