The next day the Australians commenced their advance south towards the village of Finschhafen, about south of the landing beach, with the 2/15th Infantry Battalion leading the way to the Bumi River. The Japanese had established strong defences along the river's southern bank, which the Australians attempted to outflank by sending a force to the west, climbing through steep terrain. Once they had located a suitable place to cross the river, they began wading across but were fired upon by a group of Japanese naval infantry who were positioned on a high feature overlooking the river. Despite taking casualties, the Australians were able to establish themselves south of the Bumi and at that point the 2/13th Infantry Battalion began to advance on Finschhafen from the west. Meanwhile, the 2/15th attacked the left flank of the Japanese that had opposed their crossing. After advancing up the steep slope under fire, sometimes on their hands and knees, the 2/15th took the position at the point of the bayonet, killing 52 Japanese in close combat.