Alexander Montgomery, of Palm Beach County, pulled off the ultimate underwater proposal to his girlfriend, Lauren Schuhle, while scuba diving off the Florida Keys on Saturday, July 12.
Montgomery took to the sea to sink a small treasure chest with a special message inside for Lauren to find. The whole thing was caught on camera.
Montgomery decided a month ago he would ask his girlfriend of 18 months to marry him.
Then last week, he decided to pop the question under water while her father recorded the whole thing.
"I was nervous because there were a million things that could have gone wrong and I was thinking of every single one of them," Montgomery told WPBF 25 News.
Montgomery and Schuhle met at the University of Florida where they're both students.
Montgomery told Schuhle they and their families would be going to the Keys for the weekend to scuba dive. She never suspected he had an ulterior motive.
"I had no idea any of this was going on," Schuhle said. "They kept me pretty clueless."
The plan was for Montgomery and Schuhle to start diving. Then Montgomery would surface and tell his dad to place a small treasure chest on the ocean floor for Schuhle to find.
Montgomery soon learned things don't always go according to plan.
"We're looking around and I can't find the treasure chest anywhere," he said with a laugh. "And we're running out of air."
It turns out there was a miscommunication about where his father would put the chest.
Eventually, Montgomery was able to lead Schuhle to the right part of the ocean and let her find the chest.
"I actually swam by it and then let her kind of discover it," Montgomery said. "I turned around, I'm like, 'Oh, what's that?'"
"And then I saw this treasure chest and even when I saw it, I still didn't make the connection of what was going on," Schuhle said. "I was like, 'Oh, wow, treasure chest. That's pretty random.'"
Then with Schuhle's father recording the whole thing, Montgomery opened the chest and pulled out a flip book.
On the cover was a picture of the happy couple. Inside was a poem he had written for Schuhle.
"He was proposing to me under water," Schuhle said. "It was the last possible thing on my mind."
Then Montgomery unrolled the final message, the one that asked her to marry him.
"My heart was beating so fast and all I wanted to do was give him the biggest hug," Schuhle said.
"All of these bubbles came out of her mouth as she said what I assume was yes under water," said Montgomery.
The video has already gotten almost 2,000 views on YouTube.
Montgomery and Schuhle like to joke they may be responsible for about half of those views.
"I keep watching it and I just love having it and being able to relive it," Schuhle said.
The couple already has set a date for the wedding in August 2015.