Arun is a local government district in West Sussex, England. Its council is based in Littlehampton. The district's other towns are Arundel and Bognor Regis. The district is named after the River Arun, which runs through the centre of the district. Parts of the district fall within the South Downs National Park.
The district is on the coast, facing the English Channel. The neighbouring districts are Chichester, Horsham, Adur and Worthing. From Wikipedia
