On May 15th Jansen was disabled for travelling by a sprained back and injured leg, and the next morning was scarcely able to move. Hayes decided to leave the disabled man in charge of McDonald and proceed with Knorr, his purpose being "to make the best push I could and travel as far as my provisions warranted, reach the highest attainable latitude and secure such a point of observation as would enable me to form a definite opinion respecting the sea before me." Rough ice and deep snow so impeded his progress the first day that he only made nine miles in as many hours. Ten hours' march compelled them to again camp, and four hours of the third day brought them to the southern cape of a bay which he determined to cross. After travelling four miles the rotten ice and frequent water-channels proved that the bay was impassable, and therefore they went into camp. The next day Hayes climbed to the top of the cliff, some eight hundred feet high, whence, he says, "the sea beneath me was a mottled sheet of white and dark patches multiplied in size as they receded until the belt of the water-sky blended them together.... All the new evidence showed that I stood upon the shores of the polar basin, and that the broad ocean lay at my feet.... There was seen in dim outline the white sloping summit of a noble head-land, the most northern known land upon our globe. I judged it to be in latitude 82° 30´ N., or four hundred and fifty miles from the North Pole.... There was no land visible except the coast on which I stood." Hayes, before returning to his ship, deposited in a cairn a record, dated May 19, 1861, setting forth his trip, stating that his observations placed him in 81° 35´ N. latitude, and 70° 30´ W. longitude; that his further progress was stopped by rotten ice and cracks; that he believed the polar basin was navigable during the months of July, August, and September, and that he would make an attempt to get through Smith's Sound when the ice broke that summer.