Norfolk is more of an accent than a dialect, though one part retained from the Norfolk dialect is the distinctive grammar of the region. People from Norfolk are sometimes known as Norfolk Dumplings, an allusion to the flour dumplings that were traditionally a significant part of the local diet. More cutting, perhaps, was the alleged pejorative medical slang term "Normal for Norfolk", alluding to the county's perceived status as a quirky rustic backwater due to a high level of inbreeding among residents. Tourism Norfolk is a popular tourist destination and has several major holiday attractions. There are many seaside resorts, including some of the finest British beaches, such as those at Great Yarmouth, Cromer and Holkham. Norfolk contains the Broads and other areas of outstanding natural beauty and many areas of the coast are wild bird sanctuaries and reserves with some areas designated as national parks such as the Norfolk Coast AONB. The King's residence at Sandringham House in Sandringham, Norfolk provides an all-year-round tourist attraction whilst the coast and some rural areas are popular locations for people from the conurbations to purchase weekend holiday homes. Arthur Conan Doyle first conceived the idea for The Hound of the Baskervilles whilst holidaying in Cromer with Bertram Fletcher Robinson, after hearing local folklore tales regarding the mysterious hound known as Black Shuck. Amusement parks and zoos Norfolk has several amusement parks and zoos. Thrigby Hall near Great Yarmouth was built in 1736 by Joshua Smith Esquire and features a zoo which houses a large tiger enclosure, primate enclosures and the swamp house which has many crocodiles and alligators. Holkham Hall is an 18th-century stately home and visitor attraction, constructed in the Palladian style and at the centre of a 3,000 acre deer park on the North Norfolk coast with a woodland play area, walled garden and farming exhibition. Roarr! Dinosaur Adventure (formerly Dinosaur Adventure) is a dinosaur themed adventure park in Lenwade. It is set in 85 acres of parkland and has a dinosaur trail, indoor play area, high ropes course and outdoor water play area. Great Yarmouth Pleasure Beach is a free-entry theme park, hosting over 20 large rides as well as a crazy golf course, water attractions, children's rides and "white knuckle" rides. BeWILDerwood is an adventure park situated in the Norfolk Broads and is the setting for the book A Boggle at BeWILDerwood by local children's author Tom Blofeld.