According to a RNZ report, an official with Indonesia's Ministry of Foreign Affairs, Ambassador Jauhari said the purpose of the visit was to discuss how to increase bilateral relations.
He said the delegation met with Nauru President Baron Waqa and his cabinet, and discussed development in Indonesia, including in Papua region.
President Waqa invited Indonesia to attend celebrations for Nauru's 49th anniversary of independence at the end of January next year.
Among the delegation was an Indonesian government consultant on West Papuan affairs, Franzalbert Joku.
Mr Joku said on Facebook that a visit to the Refugees Processing Centre on Nauru was an important part of his delegation's engagements with the host government.