Belgrano II (77°52′S 34°37′W﻿ / ﻿77.867°S 34.617°W﻿ / -77.867; -34.617), laboratory and meteorological station; Argentine southernmost base (since 1979) Belgrano III (77°54′02″S 45°47′01″W﻿ / ﻿77.90056°S 45.78361°W﻿ / -77.90056; -45.78361) (closed) Esperanza (63°24′S 57°00′W﻿ / ﻿63.400°S 57.000°W﻿ / -63.400; -57.000), Hope Bay Laboratory and meteorological station (since 1952) Radio LRA36 Nacional Arcángel San Gabriel, School #38 Presidente Raúl Ricardo Alfonsín (since 1978) Catholic Chapel, Post, Gym, Civil registration, port, tourist facilities Carlini (62°14′S 58°40′W﻿ / ﻿62.233°S 58.667°W﻿ / -62.233; -58.667), scientific station at King George Island Marambio Base Station (64°14′S 56°37′W﻿ / ﻿64.233°S 56.617°W﻿ / -64.233; -56.617), Seymour-Marambio Island Laboratory, meteorological station Airport, 1.2 km long, 30m wide landing track (since 1969) (Website) Orcadas Base (60°44′S 44°44′W﻿ / ﻿60.733°S 44.733°W﻿ / -60.733; -44.733), South Orkney Islands (since 1903) San Martín Base (68°08′S 67°06′W﻿ / ﻿68.133°S 67.100°W﻿ / -68.133; -67.100), laboratory and Meteorological measurements (since 1951)