The Duchess of Cambridge, Kate Middleton, will visit Grimsby in North East Lincolnshire during March.
The pregnant future Queen of England will visit the town on Tuesday, March 5.
Kate will look around the National Fishing Heritage Centre, visit Peaks Lane Fire Station and officially open Havelock Academy.
At the fire station, the duchess will meet young people on a course run by her father-in-law Prince Charles' charity The Prince's Trust.
It will be the first time she has carried out an engagement for the organisation.
Mayor of North East Lincolnshire, councillor Mike Burton, said: "I am absolutely delighted she is coming to Grimsby.
"It will be a grand occasion, and I am sure she will leave Grimsby with a good impression of the area."
Kate will also learn about Grimsby's fishing heritage and modern-day sustainable fishing at the Fishing Heritage Centre.
She will be around 21 weeks pregnant when she carries out the day of engagements, but will be alone, as William is concentrating on his RAF career.