Broads, The Norfolk, a series of inland lakes usually said to be formed by the widening or 'broadening' out of the rivers. More probably their origin is due to a change in the general level of the land surface of the county; for even within historic times the river Yare was an estuary of the sea, in which herrings were caught at the time of Domesday. The broads par excellence are those up the Bure or North River (which empties itself into the sea at Yarmouth), and its tributaries the Ant and the Thurne. On the Bure are the well-known broads of Wroxham, Salhouse, Hoveton, Horning, and Ranworth; on the Ant those of Barton and Sutton; on the Thurne those of Hickling, Mar-tham, and Horsey. The three fine broads of Ormesby, Rollesby, and Filby, though connected and forming a chain, have no practicable outlet to the river; the Yare or Norwich River has no broads on which sailing is possible, but those at Surlingham, Strumpshaw, and Rockland are well worthy a visit, and very accessible by rail; near Lowestoft, on the Waveney, is Oulton Broad. The broads have grown greatly in favour with holiday-makers, so that now on a Saturday, during August and September, perhaps a hundred yachts may be seen at once. See works by Davies (1884), Rye (1887), Suffling (1891), Emerson (1893), and Dutt (1903).