The royal mum will step out later this month with Prince William, the palace announced Thursday

By Simon Perry
Updated July 16, 2015 03:00 PM
Credit: Mario Testino /Art Partner

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Set your calendars! Royal fans will have a chance to see half of the new Royal Fab Four as Princess Kate and husband Prince William head for a fun day at the seaside.

The new parents will leave kids Prince George and Princess Charlotte at home to visit Portsmouth on England s south coast on July 26, the palace announced Thursday.

Kate, 33, will check on the progress of the America s Cup British yacht team, watch some racing and visit a waterfront festival in the harbor city.

It s the first official royal engagement for the royal mum since Charlotte was born on May 2, but aides are stressing that she is still principally focused on motherhood and this is not a return to full-on royal duties.

During the engagement, Kate is also set to hear more about a charity she has adopted, the 1851 Trust, which works to inspire a new generation into sailing and the marine industry. She and William will check visit the “1851 interactive zone,” where they will meet young people who have taken their first sailing steps with the Trust and hear more on the charity’s “sailing taster” project run with the Andrew Simpson Sailing Foundation.

Up to 1,000 locals ages nine to 14 are being given the chance to try sailing during the five-week summer project, operating from Portsmouth Sailing Club.

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Kate last visited the city in February to see the beginnings of the team headquarters being constructed.

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