Balneario de Belascoáin Historical milestone · Belascoáin, Comarca de Pamplona, Navarra Image of Belascoáin, not of the place itself. A spa establishment opened in 1831 after the discovery of a spring, with a thirty-room guesthouse; it operated until 1936. During the Civil War its hotel facilities were militarized and converted into a field hospital. Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Belascoáin