what are some places on the route they followed?
ancient Lapita trade network of Island Melanesia; the Hiri trade cycle, Sepik Coast exchange, and the Kula ring of Papua New Guinea; the ancient trading voyages in Micronesia between the Mariana Islands and the Caroline Islands
Trade route
 Among them was the ancient Lapita trade network of Island Melanesia; the Hiri trade cycle, Sepik Coast exchange, and the Kula ring of Papua New Guinea; the ancient trading voyages in Micronesia between the Mariana Islands and the Caroline Islands
india is an international highway of trade and commerce explain with reason The first true maritime trade network in the Indian Ocean was by the Austronesian peoples of Island Southeast Asia, who built the first ocean-going ships. They established trade routes with Southern India and Sri Lanka as early as 1500 BC, ushering an exchange of material culture and cultigens as well as connecting the material cultures of India and China.
wiki:4991664
Trade route [SEP] Austronesian maritime trade network
This trade network expanded to reach as far as Africa and the Arabian Peninsula, resulting in the Austronesian colonization of Madagascar by the first half of the first millennium AD. It continued up to historic times, later becoming the Maritime Silk Road. This trade network also included smaller trade routes within Island Southeast Asia, including the lingling-o jade network, and the trepanging network. In eastern Austronesia, various traditional maritime trade networks also existed. Among them was the ancient Lapita trade network of Island Melanesia; the Hiri trade cycle, Sepik Coast exchange, and the Kula ring of Papua New Guinea; the ancient trading voyages in Micronesia between the Mariana Islands and the Caroline Islands (and possibly also New Guinea and the Philippines); and the vast inter-island trade networks of Polynesia.