Credit: The Sun/N.I. Syndication

Better work on your aim, Prince Harry!

Celebrating the New Year in Switzerland, the British royal and pal Tom Inskip took matters into their own hands Friday when avalanche warnings forced them away from the ski slopes and had a good old fashioned snowball fight.

Spending their day at a luxury boutique hotel, Harry, 27, and Inskip, 25, bided their time hurling snowballs off the balcony.

While most of their shots dissolved after hitting the pavement, one of Inskip's mounds nearly hit a couple who was passing by their hotel.

"Harry was having a great time," a witness told the U.K. Sun of the royal's day of winter fun.

As Harry rings in 2012 in Switzerland, his brother, Prince William, and sister-in-law, Kate Middleton, are expected to travel to Aberdeen, Scotland.

A source tells Us Weekly the royal newlyweds will celebrate their first New Year's Eve as husband and wife at Birkhall, a 53,000-acre estate belonging to William's father, Prince Charles, and his wife, Camilla Parker-Bowles, Duchess of Cornwall.