Duchess dives into family hobby with expert scuba badge

The Duke and Duchess of Cambridge can add scuba diving to the list – as Kate has now equalled William’s level by gaining an advanced qualification.

The Duke of Cambridge is also an experienced diver and follows his father and grandfather in heading the British Sub-Aqua Club (BSAC).

Middleton gave birth to their second child, Princess Charlotte, in May.

Catherine, Duchess of Cambridge waves to a british competitor during the Women’s Laser Radials race on Day 10 of the London 2012 Olympic Games at the Weymouth & Portland Venue at Weymouth Harbour on August 6, 2012 in Weymouth, England.

The Duchess is thought to have gained the Professional Association of Diving Instructors (PADI) qualification from a diving school in Mustique, a small island part of St Vincent and the Grenadine where Cheryl Cole married Jean-Bernard Fernandez Versini. According to Telegraph, the qualification can be very risky, seeing as if the diver goes any deeper, he or she can develop risks such as nitrogen narcosis, which gives an equivalent sensation to drunkenness.

Those who take the course also learn how to plan dives and deal with the physiological effects and challenges of deep water.

Kelly Fisher Katz, a jeweller who met the Duke and Duchess along with her husband Martin, spoke about their experience diving and how the royal couple did.

A keen sports enthusaist, the Duchess recently visited the base of Ainslie’s Land Rover BAR Racing team, where she tried out an Oculus Rift sailing simulator.

Before the couple went head to head in a dragon boat race in Canada in 2011, the duke said: “We are both very competitive”.

“I have been fortunate enough to have dived in some stunning locations around the world”, Prince William said. “They’re quite the sportsmen”.

Last year, Prince William spoke of his love of swimming underwater.