The Fifth District MRCC is divided into three seaward zones, defining the primary SAR assets, with regular Chilean Navy warships, with embarked helicopters, taking responsibility for the most westerly zone.
Cape Horn in good weather
The Fifth District MRCC is in Naval Zone IIIa. The mainland district of Chile is Patagonia, ending at Cape Horn. The MRCC Fifth District continues South to Antarctica and West to 131 Degrees 00 Minutes West, where it meets the SAR Zone covered by New Zealand. This is one of the most forbidding and hostile maritime areas on Earth. Prevailing winds are Westerly and the area is subject to frequent violent storms. In addition to cruise ships, many yacht races pass east about on circumnaviagation. A much smaller number attempt a west about rounding of Cape Horn and the smallest yacht to successfully make a west about passage was the Alpha Global Expedition yacht Barrabas, sailed by British solo yachtsman Adrian Flanagan.