The priest stood at an altar made of pearls to welcome the couple - Nicolas and Alexandra - from Madrid, Spain.
The couple decided to seal their union four meters under water in the stunning turquoise waters of Bora Bora.
It was the first underwater wedding in this lagoon, but it will certainly not be the last.
Paul Ramos, manager of thirteen Top Dive diving clubs in Polynesia said he developed the idea to give couples the experience of a lifetime for just €2,700.
Both Alexandra and Nicolas said that they were excited about getting married in such a unique way and donned white wedding diving outfits for their special ceremony.
Groom Nicolas said: 'I guess it's like walking for the first time on the moon.'
Meanwhile, his bride's outfit was reminiscent of an astronaut's space suit.
And unlike most brides, she did not have to worry about having the perfect bridal hairstyle because she had a helmet on her head.
