The Sealyham mansion (we love how it was once referred to as the “country house” by the family) was once the home of the Edwardes family. The Sealyham Terrier was developed here in the 19th century by Captain John Owen Tucker-Edwardes. The house served as a sanatorium and medical facility from 1923 to 1964, but since 1986, it’s been a children’s activity center.