Proper noun
A lake (known as a broad) near Lowestoft in East Suffolk district, Suffolk, England.
A suburb of Lowestoft, Suffolk to the south of the broad (OS grid ref TM5292)
Source: en.wiktionary.orgNext Wednesday, June 20 a five-mile walk will be held in the Oulton Broad, Lake Lothing and Carlton Marshes area. Source: Internet