The night of 19–20 June was spent in an unsheltered cove. On 20 June, camp was set up at Constantine Harbor, using the buildings and heating equipment which had survived a Japanese bombing. By 21 June, the camp was fully organized: routines, including sentries and lookouts, had been established. Trips to and from the cove continued for three days. "S-27" was re-boarded on 21 June and 22 June; thereafter, the presence of chlorine gas prohibited further visits to take off more supplies.