A military structure located near the coordinates 49.5958°N, 1.6997°W in Normandy, France. The designation 'Fla Bat' suggests a possible historical association with German World War II-era Flak (anti-aircraft) artillery batteries, a common feature of the Atlantic Wall fortifications along the French coast. However, the provided web search results contain no specific information confirming the existence, function, or historical details of this particular site.
Further local historical or archaeological verification would be required to establish its precise nature and significance.