Midwinter Day, the most prominent cultural holiday in Antarctica, it falls on 21st June.
Midwinter marks the southern winter solstice, which is the shortest day of the year. It is widely celebrated across nearly all international Research Stations as the halfway point of the harsh, dark winter. While it is not a legally mandated public holiday (as Antarctica has no indigenous population or government), overwintering scientists treat it as their most significant festive milestone.
The day is deeply steeped in tradition: For scientists and support staff overwintering on the ice, this day holds more significance than Christmas. Teams exchange handmade gifts, decorate their bases, and enjoy special multi-course meals prepared by their wintering chefs.
Stations tune into special radio broadcasts, including the annual BBC World Service Midwinter Broadcast. At several Australian and British stations, it is a quirky tradition for personnel to strip down and take a polar plunge in freezing, sub-zero waters. Heads of state and international programs traditionally send official Greetings, messages of goodwill to overwintering personnel.
The tradition was established by British explorer Robert Falcon Scott during his 1902 Discovery expedition. Scott wanted to boost morale by breaking up the monotony of the dark, freezing months, establishing a tradition that remains.
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The primary, physical scientific building on Navarino Island is the Cape Horn Sub-Antarctic Center (known locally as the Centro Subantártico Cabo de Hornos). Located in Puerto Williams, this iconic facility serves as the headquarters for the Cape Horn International Center (CHIC). It is the world’s southernmost climate change research station. Designed by the international firm Ennead Architects, the building’s architecture mimics a “three-canoe” form. This design provides shelter from harsh Sub-Antarctic winds and maximizes solar exposure. The building is split into three integrated pavilions:
Alfred-Faure or Port Alfred is a permanent French Scientific Station on Possession Island of the subantarctic Crozet Archipelago in the South Indian Ocean.
Permanent occupation with a Scientific Station, is dated from 1963. The 20 small mountainous islands of Crozet are a French territory and are uninhabited except for scientific personnel and penguins. Home to seals, King Penguins and other birds, Crozet is designated a “National conservation area” by France.
Overfishing in recent years led the French to declare an exclusive economic zone around their islands in this part of the world in 1978. Today, the French Navy patrols the zone.