In the Beagle Channel, foreign vessels are under the Argentine Chilean pilotage agreement. For navigating the channel westbound, vessels should embark an Argentine pilot off Cabo San Pio (55°04'S., 66°32'W.). The Argentine pilot is disembarked and a Chilean pilot embarked at the meridian demarcating the Argentine and Chilean waters in the channel situated close W of Bahia Lapataia. For navigating the channel eastbound, vessels should embark a Chilean pilot W of Bahia Lapataia (54°52'S., 68°32'W.); the pilot may be disembarked near Isla Reparo (55°03'S., 66°49'W.), about 8 miles W of Cabo San Pio. This area is also used to exchange pilots during inclement weather.

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