Simplify the following text for a Grade 7 native English-speaking person.
Original: It is named after its largest settlement , Lancaster , but covers a far larger area which includes the towns of Morecambe , Heysham , and Carnforth , as well as outlying villages and rural hinterland .
Simplified: Other towns in the district include Morecambe , Heysham , Slyne , and Carnforth .