Languages The native languages of the islands are classified as the
Reef Islands – Santa Cruz languages, within the
Oceanic subgroup of the
Austronesian language family.
Ocean Navigation Historically, the people of Santa Cruz made long-distance ocean-going voyages using
Tepukei. Tepukei are ocean-going outrigger canoes specific to some
Polynesian societies of eastern Solomon Islands including Santa Cruz. In 1966
Gerd Koch, a German anthropologist, carried out research at Graciosa Bay on
Nendö Island (Ndende/Ndeni) in the Santa Cruz Islands and on
Pileni and
Fenualoa in the
Reef Islands, and returned with documentary film, photographic and audio material. The films that Koch completed are now held by the
German National Library of Science and Technology (TIB) in Hanover. He brought back to the
Ethnological Museum of Berlin the last still complete Tepukei from the Santa Cruz Islands. In 1971 Koch published
Die Materielle Kultur der Santa Cruz-Inseln (The Material Culture of the Santa Cruz Islands). Navigators from the Santa Cruz islands retained traditional navigation techniques into the 20th century; these techniques were also known by the
navigators of the Caroline Islands. In 1969, Tevake accompanied
David Henry Lewis on his
ketch Isbjorn from
Taumako using traditional navigation techniques by studying wave patterns and made landfall at
Fenualoa, having navigated for without being able to view the stars, due to cloud cover. On a second voyage from
Nifiloli to
Vanikoro, Tevake navigated by the stars, wave patterns, and the patterns of
bioluminescence that indicated the direction in which islands were located. ==Contact with other cultures==