The western part of Tierra del Fuego being reached, Cook followed the shore to the south-east, mapping the outside of this dangerous and inhospitable archipelago. On December 20th he put in to what he afterwards called Christmas Sound, where large numbers of kelp geese were obtained, giving the crew what Cook describes as a dainty Christmas feast, though the flesh of these birds is as tough, fishy, and unpalatable as can well be imagined; on this occasion, however, the seamen seemed to have concurred in the verdict of their omnivorous commander, to whom nothing ever came amiss. Be it remembered, however, how long they had been on salt provisions, and that the South Sea Islands, though pleasant in many respects, produced but little solid food—no beef, mutton, or flesh of any quadruped but pigs, and those in not very great plenty—while New Zealand gave them nothing but fish. Rounding Cape Horn, he passed through the Strait Le Maire, and followed the north shore of Staten Island, anchoring at one place to obtain seals and birds. Whilst praising the flavour of a young seal cub, Cook is compelled to admit that the flesh of an old sea lion is abominable; a remarkable statement as coming from him. Leaving Staten Island, Cook steered east and discovered South Georgia, named after the king. He followed the north coast of this desolate and ice-clad island, obtaining more refreshment in the shape of seals, penguins, and shags—unpalatable, but welcome food to men who had so long subsisted on bad salt meat. From South Georgia the ship's head was once more turned southwards, and before many days ice was again encountered. In stormy and thick weather the Resolution made her way, disproving the existence of a great tract of land laid down by speculative geographers, until January 31st, 1775, when Sandwich Land was discovered in about latitude 60° S. This ice-covered group of islands was sketched under great difficulties from gales, fogs, snow, and numerous icebergs; and Cook then bore away along their parallel, to seek once more for Bouvet's Islands to the eastward.