{"geometry":{"type":"MultiPolygon","coordinates":[[[[-0.657362,54.147903],[-0.657266,54.14794],[-0.65724,54.147947],[-0.657119,54.147989],[-0.656995,54.148025],[-0.656905,54.148044],[-0.656921,54.148057],[-0.656964,54.148102],[-0.656977,54.14812],[-0.657008,54.148172],[-0.657015,54.148187],[-0.657029,54.148226],[-0.657037,54.148276],[-0.657038,54.14831],[-0.657037,54.148321],[-0.65704,54.148331],[-0.657049,54.148341],[-0.657085,54.14836],[-0.657115,54.14838],[-0.65729,54.148468],[-0.657306,54.14848],[-0.657352,54.14852],[-0.657405,54.148575],[-0.657436,54.148614],[-0.657442,54.148633],[-0.657473,54.148705],[-0.657487,54.148743],[-0.657501,54.148768],[-0.657546,54.148823],[-0.657614,54.148898],[-0.657625,54.14892],[-0.657635,54.14893],[-0.657652,54.148942],[-0.657694,54.148964],[-0.65772,54.148974],[-0.657745,54.14898],[-0.657986,54.148988],[-0.658073,54.148994],[-0.658129,54.149006],[-0.658169,54.149019],[-0.658209,54.14904],[-0.658234,54.14905],[-0.658242,54.149059],[-0.658253,54.149068],[-0.658299,54.149101],[-0.658353,54.149129],[-0.658413,54.14915],[-0.658624,54.149231],[-0.658925,54.149355],[-0.659553,54.149581],[-0.659951,54.149726],[-0.660032,54.149752],[-0.660052,54.14976],[-0.660092,54.149782],[-0.660129,54.149807],[-0.660154,54.149821],[-0.660185,54.149835],[-0.660231,54.149848],[-0.660328,54.149869],[-0.660376,54.149884],[-0.660419,54.149904],[-0.660693,54.15008],[-0.66081,54.15016],[-0.66086,54.150196],[-0.660945,54.150259],[-0.661015,54.150315],[-0.661247,54.150495],[-0.66149,54.150679],[-0.661497,54.150686],[-0.661777,54.150902],[-0.66194,54.15102],[-0.661962,54.151034],[-0.662029,54.151069],[-0.662074,54.151096],[-0.662162,54.151159],[-0.66224,54.151221],[-0.662309,54.151272],[-0.662434,54.151358],[-0.662611,54.151472],[-0.66294,54.151668],[-0.663222,54.151823],[-0.66326,54.15184],[-0.663323,54.151872],[-0.663358,54.151894],[-0.663385,54.151914],[-0.663433,54.151793],[-0.663466,54.151689],[-0.663513,54.151578],[-0.663629,54.151283],[-0.663797,54.150866],[-0.663828,54.150799],[-0.663977,54.150436],[-0.66406,54.150184],[-0.664096,54.150052],[-0.664132,54.149893],[-0.663401,54.149707],[-0.66245,54.149455],[-0.661157,54.149133],[-0.66041,54.148936],[-0.659689,54.148738],[-0.658949,54.148528],[-0.658022,54.148276],[-0.657883,54.148092],[-0.657673,54.147821],[-0.657596,54.147812],[-0.657362,54.147903]]]]},"type":"Feature","properties":{"entry-date":"2026-04-23","start-date":"","end-date":"","entity":14500068,"name":"Wintringham Marsh SSSI","dataset":"site-of-special-scientific-interest","typology":"geography","reference":"1000083","prefix":"site-of-special-scientific-interest","organisation-entity":501910,"quality":"authoritative"}}