The US bases were not the only, or even the first, air stations operating in Bermuda, however. The civil airport, a flying boat station on Darrell's Island, was taken over by the RAF at the start of the war, and used by two commands. The government airline, Imperial Airways/BOAC, which had operated Darrell's Island before the war, adopted its war time role, and its camouflaged flying boats maintained trans-Atlantic service through Bermuda throughout the war. US Navy aircraft also briefly operated from Darrell's Island, maintaining anti-submarine air patrols, before their own base was operational. Before the US entry into the war, anti-submarine air patrols were flown on an ad-hoc basis by the Walrus flying boats of the Royal Navy's Fleet Air Arm, operating from its own base on Boaz Island. thumb|War Department Ordnance Survey Marker, Bermuda.
The US bases were not the only, or even the first, air stations operating in Bermuda, however. The civil airport, a flying boat station on Darrell's Island, was taken over by the RAF at the start of the war, and used by two commands. The government airline, Imperial Airways/BOAC, which had operated Darrell's Island before the war, adopted its war time role, and its camouflaged flying boats maintained trans-Atlantic service through Bermuda throughout the war. US Navy aircraft also briefly operated from Darrell's Island, maintaining anti-submarine air patrols, before their own base was operational. Before th.e US entry into the war, anti-submarine air patrols were flown on an ad-hoc basis by the Walrus flying boats of the Royal Navy's Fleet Air Arm, operating from its own base on Boaz Island. thumb|War Department Ordnance Survey Marker, Bermuda