The Great Barrier Reef

Before arriving in Australia, Blake, an Ultimate Viewer from Oklahoma City, planned a big surprise for his girlfriend of four years, Sami. He arrives at Reefworld with more than sunscreen and a swimsuit—he brought along a diamond engagement ring! "My mom gave up her spot so Sami could come with me," he says.

After a 20-minute scuba lesson and a little help from Gayle, Blake asks Sami to marry him.