Facebook founder Mark Zuckerberg and wife Priscilla Chan celebrate their first Christmas in Hawaii

New Delhi, Dec 31: US billionaire and Facebook co-founder celebrated his first Christmas with wife Priscilla Chan on the beautiful and serene in island of Maui, in Hawaii. Mark Zuckerberg, looked pretty relaxed in a pair of board shorts and his own surfboard, with wife Priscilla, who looked nice in red one-piece. The couple laughed and joked during private surfing lessons on the island of Maui.It was an incredible experience for both 28-year-old Mark and his 27-year-old wife on the Hawaiian island, a popular tourist spot for surfing and windsurfing.The couple tied the knot on May 19 with a ceremony in the billionaire's backyard in Palo Alto, California. It was a joint celebration to mark Chan's graduation from medical school. So it was indeed a join celebration for the billionaire to spend some good time with this wife. These beach pictures are a rare glimpse of a notoriously private couple, who started dating in 2003 after meeting in line for the bathroom at a frat party at Harvard University.Let's take a look at some of them.Pic 1. Facebook's Mark Zuckerberg and wife Priscilla Chan (right) in Maui.Pic 2. Is it social networking? The Zuckerbergs interacting with fellow surfers.Pic 3. The Hawaiian island has always been a popular tourist spot for surfing and windsurfing.Pic 4. Priscilla Chan looks like an accomplished surfer.Pic 5. Mark Zuckerberg carrying his own surfboard.Pic 6. Mark Zuckerberg in a pair of board shorts.Pic 7. What may surprise many is that despite being the owners of extreme wealth, the Zuckerbergs live quietly in California and are enjoying a simple holiday.Pic 8. Mrs Zuckerberg in a one-piece, sporty red swimsuit.