• Vessel: M/V Pacific Nomad, 115 ft dive excursion vessel
• Port of Embarkation: Suva, Fiji
• Destination: Nikumaroro (formerly Gardner Island) and McKean Island, uninhabited islands in the Phoenix Group, Republic of Kiribati.
• Operations: General survey and evaluation of islands as possible landing sites of the Earhart flight.
• Artifacts Recovered: McKean Island – nothing. Nikumaroro – several pieces of aircraft debris found in abandoned Gilbertese village at west end.
• Results: McKean Island eliminated. Nikumaroro identified as worthy of further investigation.

See TIGHAR Tracks Volume 5, #3; Volume 5, #4; Volume 5, #5 for details.

• Vessel: R/V Acania, 125 ft research vessel.
• Port of Embarkation: Honolulu, Hawaii
• Destination: Nikumaroro
• Operations: Side-scan sonar search of atoll perimeter. Onshore search of eastern beach area for possible campsite reported seen in 1944. Excavation of small grave on southern arm of atoll. Further examination of abandoned village at west end.
• Artifacts Recovered: Sonar search negative. Search for campsite negative. Grave found to contain bones of an infant. Remnants of shoes found near grave site. Additional aircraft debris found in village.
• Results: Shoe remnants are consistent with shoes worn by Earhart. Some aircraft debris is consistent with WWII B-24 (probably brought from Sydney Island). Other aircraft debris is not consistent with any known WWII type and is consistent with Earhart’s Lockheed Model 10E Special.

See TIGHAR Tracks Volume 7, #4; Volume 7, #5; Volume 8, #1 for details.

• Vessel: open launch
• Port of Embarkation: Gizo Island, Solomon Islands
• Destination: Waghena Island, Solomon Islands
• Operations: Interview former residents of Nikumaroro. (Nikumaroro was originally settled by Gilbertese islanders under British authority in late 1938. The colony was abandoned and the residents resettled to the Solomon Islands in 1963.)
• Results: The people’s folklore includes a story that the first work party on Nikumaroro in 1938 found the bones of a white man and woman, identifiable as such from the remnants of clothing and shoes they wore.
• TIGHAR Tracks articles about this expedition: Solomon Islands Expedition

• Vessel: M/V Matagi Princess II, 85 ft. dive excursion vessel.
• Port of Embarkation: Taveuni, Fiji
• Destination: Nikumaroro
• Operations: Update logistical data in preparation for NIKU III. Try again to locate campsite on eastern beach with help of newly acquired photographic evidence.
• Artifacts Recovered: Additional aircraft components from abandoned village.
• Results: Logistical data gathered. Search for campsite successful, but site proved to be associated with the Gilbertese settlement. Additional artifacts found in village are consistent with Earhart's aircraft.
• TIGHAR Tracks articles about this expedition: The Niku III Preliminary Expedition, Preliminary Findings, Part Number 40552.

• Vessel: M/S Nai’a. 120 ft motor-sailer dive excursion vessel
• Port of Embarkation: Suva, Fiji
• Destination: Nikumaroro
• Operations: see Niku III: Once And For All
• TIGHAR Tracks articles about this expedition: Hell & High Water, Completing the Puzzle, I Saw Pieces of an Airplane, Back to Square One for 2-2-V-1.

• Vessel: Chartered Gulfstream 1 Turbo-prop corporate aircraft
• Port of Embarkation: Honolulu, Hawaii
• Destination: Kanton Island, Republic of Kiribati
• Operations: See The Kanton Mission
• TIGHAR Tracks articles about this expedition: The Pilots Thought I was Nuts, Ate Another MRE

• Vessel: M/S Nai’a, 120 ft motor-sailer dive excursion vessel
• Port of Embarkation: Lautoka, Fiji
• Destination: Nikumaroro
• Operations: see Niku IIIIP Expedition Report.

• Vessel: M/S Nai’a, 120 ft motor-sailer dive excursion vessel
• Port of Embarkation: Pago Pago, American Samoa
• Destination: Nikumaroro
• Operations: see Niku IIII Summary, Niku IIII Daily Reports.

• See Niku VP for full details.

• See Niku V for full details.

• See Niku VI for details about this upcoming expedition.