The Duke and Duchess of Cambridge's day supporting sailor Sir Ben Ainslie and his crew in the America's Cup World Series was blown off course by bad weather.
Parts of William and Kate's itinerary had to cancelled and new venues found for other events after heavy rain and blustery conditions swept into Portsmouth.
Sir Ben, the most successful sailor in Olympic history, is due to skipper his team on the second day of the opening leg of the World Series but it's been confirmed that racing has been abandoned for the day.
After being forced to return to dry land, Sir Ben said: "The English summer, you just can't count on it.
"Yesterday was the most amazing day of my sailing career. There were so many people out, everyone had a fantastic time.
"Today was a shame but we will get that sorted out and book the weather in for next year."
The royal couple had hoped to watch the first of two races from a boat but this was cancelled along with a tour of a festival site as the ground was waterlogged.
William and Kate left their children - Prince George and Princess Charlotte - in the care of their personal staff to travel to the south coast for the event.
The Duchess, who is a keen sailor, joined Sir Ben in June last year when he formally launched Britain's bid to win the America's Cup for the first time.
Points collected during the World Series determine who will challenge the US for the America's Cup which will be staged in Bermuda in 2017.
Sir Ben is off to a flying start after his crew clinched a win and a second place during the two races staged yesterday in front of thousands of spectators.
Cornwall based sailing star - Sir Ben Ainslie - has triumphed in the first round of the America's Cup World Series - after racing was called off because of bad weather.
It's the first time the sailing competition has taken place in the UK since 1851 - and yesterday he came from behind to win the race in front of a packed Portsmouth harbour.
Torrential downpours meant today's event had to be cancelled.
Yesterday the Duchess of Cambridge and the Prince of Wales paid a visit on the second day of the opening leg.
The Duke and Duchess of Cornwall have completed a busy schedule of visits to the county, visiting all parts of the Duchy over the past three days.
The last day of the tour included a visit to Fistral Beach in Newquay.
Here they were shown how the marine litter which regularly washes up on our shores is now being recycled.
The Prince also had a close encounter with two giant creatures from the sea during the visit.
Steve Hardy reports.
It's the final day of the Duke & Duchess of Cornwall's visit to the Duchy and today they're at Fistral Beach, Newquay. They're seeing how local charities are tackling litter on our coastline.
The Duchess of Cornwall stops for a picture with 'Larry the Lobster' and 'Sally the Starfish', who are environmental campaigners from the Marine Conservation Society.
The Prince of Wales and the Duchess of Cornwall are continuing their tour of the Scilly Isles by visiting St Agnes.
Prince Charles and Camilla are currently taking part in their annual summer annual tour to the region.
With the focus of their three day visit on the region's tourism industry.
Prince Charles and Camilla were entertained by pupils from St Agnes school, who performed the famous story of St George slaying the Dragon for them in the sunshine.
They also visited the Island Fair where they were introduced to some local wildlife.
The Duke and Duchess of Cornwall are spending a second day in the county today.
They're focusing on the tourism industry and local communities during this year's visit - stopping in Padstow in North Cornwall yesterday, meeting RNLI volunteers and visiting a restaurant run by celebrity chef Rick Stein. Today the royal couple will be on the Isles of Scilly, stopping by a local island fair on St Mary's.
Prince Charles is on his annual summer visit to Cornwall - and couldn't avoid an "I'm a celebrity" momentRead the full story ›
Princess Anne was in Plymouth today for a tea party in North Prospect.
The Princess unveiled a commemorative plaque at the Beacon community hub to mark its official opening and celebrate the regeneration of the area.
She met long time residents, including a woman who appeared in a photo with Princess Anne's grandfather King George VI. Gladys Tapper is now 87.
At the age of four, Gladys Tapper appeared in a photo showing the future King George VI at a school in Plymouth.
Today, at the age of 87, she's due to meet the King's grand-daughter when Princess Anne comes to the city.
We'll have a report on that meeting in the West Country Tonight at six.
The officer who led the policing operation in response to the Somerset floods in 2014 has been awarded an MBE.
Chief Superintendent Caroline Peters, the Area Commander for the north east, has been given the award for her service and dedication to the communities of Avon and Somerset.
Caroline headed up the police operation throughout the floods which caused widespread devastation in 2014.
She started her career with the Metropolitan Police in 1987 before joining Avon and Somerset police in 2003. Caroline is married with three daughters.
I am absolutely thrilled and genuinely taken aback. I am immensely proud to receive the award. I would like to thank my husband and family for all their support throughout my career - I could not have done it without them. Policing is a fantastic career and I feel so privileged to work with some great people.