Prince William's cousin, Zara Phillips (age 30), is marrying rugby player Mike Tindall (age 32) in Edinburgh, Scotland tomorrow at 3:00 p.m. Zara is Queen Elizabeth's eldest grandchild.
Tonight, guests are kicking off the weekend's festivities aboard the Windsor's retired vessel, the Royal Yacht Brittania. The vessel was retired and decommissioned in 1997 and is docked in Leith outside of Edinburgh. This is the first sighting of the duo since their Canadian tour and People magazine reported that while in Scotland, the Duke and Duchess of Cambridge will be called by their Scottish titles - the Earl and Countess of Strathearn.
Shown here and as reported ten minutes ago by the Daily Mirror, is Catherine and William leaving the wedding rehearsal today, which we are hearing lasted about 50 minutes.
It looks as though the Duchess might be wearing the green Diane von Furstenberg Maja dress that she wore on her Canadian tour. Guests then headed over to the royal yacht for celebrating.
Prince Harry boarding the Britannia.
Prince William and Catherine boarding the yacht. Photos: PA