Walberswick is a village and civil parish on the Suffolk coast in England. It is at the mouth of the River Blyth on the south side of the river. The town of Southwold lies to the north of the river and is the nearest town to Walberswick, around 1 mile (1.6 km) away. Walberswick is around 11 miles (18 km) south of Lowestoft on the North Sea coast. It is 7 miles (11 km) east of Halesworth and 28 miles (45 km) northeast of the county town of Ipswich.

Southwold is a seaside town and civil parish on the North Sea, in the East Suffolk district, in the county of Suffolk, England. It lies at the mouth of the River Blyth in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty, 11 miles (18 km) south of Lowestoft, 29 miles (47 km) north-east of Ipswich and 97 miles (156 km) north-east of London, within the parliamentary constituency of Suffolk Coastal. At the 2021 Census, the population was 950.