He turned south .
He crossed what is now known as the Bransfield Strait ( named for him by James Weddell in 1822 ) , and on 30 January 1820 sighted Trinity Peninsula , the northernmost point of the Antarctic mainland .
Turning south , he crossed what is now known as the Bransfield Strait ( named for him by James Weddell in 1822 ) , and on 30 January 1820 sighted Trinity Peninsula , the northernmost point of the Antarctic mainland .