2026-09-25T12:43:09+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object10776143375BLAST SHELTERYA structure, usually of earth and concrete, and usually, although not always, subterranean, designed for protection against explosives1P