Norfolk, UK Lifeboat Horse, a sculpture by Rachael Long, stands on the mudflats during low tide at Wells-next-the-Sea. The creation, inspired by the horses used to haul the lifeboat to launch during the 1800s, is made from scrap metal, recycled wooden barrels and steel rods and is designed to stand on the mudflats at low tide before gradually being covered by the sea

Photograph: Joe Giddens/PA