This paper provides an introduction to Lakurumau, a previously undescribed and undocumented Oceanic language of Papua New Guinea. The first part of the paper is a guide to the Lakurumau documentation corpus, deposited in the ELAR archive. The participants and the content of the deposit, the technology used for recording, and the ethical protocols followed in the construction of the corpus are discussed. In the second part, a brief grammatical description of Lakurumau is presented, providing morpho-syntactic and sociolinguistic evidence in support of the classification of Lakurumau as an independent language, and some directions for future work are outlined.