The Ice House, Lanty's Tarn, Keldas, Patterdale, Lake District, Cumbria.
The Marshalls of Patterdale Hall bought the neighbouring Lanty's Tarn in the 19th century. They damned the outflow and stocked the tarn with brown trout from Ullswater. In winter, ice from the tarn would have been layered with straw and stored in this underground ice house for use in the summer months.