Caister-on-Sea, also known colloquially as Caister, is a large village and seaside resort in Norfolk, England. It is close to the town of Great Yarmouth. At the 2001 census it had a population of 8,756 and 3,970 households, the population increasing to 8,901 at the 2011 Census.

Great Yarmouth, often called Yarmouth, is a seaside town which gives its name to the wider Borough of Great Yarmouth in Norfolk, England; it straddles the River Yare and is located 20 miles (32 km) east of Norwich. Its fishing industry, mainly for herring, shrank after the mid-20th century and has all but ended. North Sea oil from the 1960s supplied an oil-rig industry that services offshore natural gas rigs; more recently, offshore wind power and other renewable energy industries have ensued.