Families will have the chance to visit Holkham Hall for a family fun day, with a dog show, food stalls and a pet portrait station.
RSPCA mid-Norfolk and Suffolk, a local branch based in Ashwellthorpe, will run the 'One Fun Day event' on Saturday, June 17 at the stately home.
Education and events manager, Leanne Neave, said: "We hope people will be able to join us on the day and we really look forward to seeing everyone - it promises to be a great day and you will be doing your bit to help animals in need."
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There will be a dog show with classes for every type of pup including Scruffiest Dog, Best Pedigree, Working Dog and Best in Show.
There will also be a dog display, trails, games and food stalls selling treats for animals and their owners.
Visitors taking their pooches along can also take home a paw print tile from local crafters Dotty Pottery and have their pet portraits taken at a pop-up photography studio.
The event is between 10am and 3pm and Holkham Hall is providing parking at £5 for the day.
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