Ships were able to sail southward to Buton Island and then turn left to reach Banda and Amboina. The second route was used during the southeastern monsoon of June–August for travelling from Makassar to North Maluku, then on to Papua via Manado in North Sulawesi, Ternate and Seram. On this route, ships also used the landward and seaward winds from the mainland wind. It is very difficult to sail against the wind and the currents