Sea Mere, Hingham is a 36.3-hectare (90-acre) biological Site of Special Scientific Interest close to the town of Hingham in Norfolk, England.[1][2]
The site has a natural circular kettle hole mere which was formed during the Holocene period approximately 10,000 years ago and covers 20 acres (8.1 ha)[3] together with areas of fen, grazing marsh and woodland. The fen has a rich variety of flora including saw sedge, marsh pennywort, yellow loosestrife, yellow iris and the rare green figwort.[4]
52°34′12″N 1°00′04″E / 52.570°N 1.001°E / 52.570; 1.001