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Place guide · Aiwo

Command Ridge

Command Ridge

The highest natural point on Nauru at 65 metres, bearing the remains of a Japanese signal station from World War II and commanding panoramic views across the mined interior.

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01

A closer look

Command Ridge rises just 65 metres above sea level, yet on a flat island where most of the interior has been stripped to a moonscape of limestone pinnacles, this modest elevation provides the only genuine panoramic vista available to visitors, sweeping from the phosphate mines on one side to the ocean on all others and giving a perspective on Nauru's geography that cannot be obtained from any other accessible location on the island.

The Japanese signal station that gave the ridge its name remains partially intact, its concrete foundations and underground chambers a reminder that Nauru was occupied by Imperial Japanese forces from 1942 to 1945, a period that saw the construction of numerous defensive installations across the island including gun emplacements at Makwa Point and an airfield that was later expanded by American forces after they captured the island in the Pacific campaign.

The boundary between Aiwo and Buada districts passes through the ridge area, and the contrast between the two sides is visible from here: the scarified phosphate workings of the central plateau give way almost immediately to the greener, more habitable coastal fringe where the majority of Nauru's population actually lives, a spatial segregation that reflects the environmental destruction of the interior in a way that becomes viscerally comprehensible when viewed from above.

The ridge is covered in a mix of coconut palms and secondary scrub that provides habitat for the Nauru reed warbler, an endemic subspecies found nowhere else in the world, and the observant visitor may spot it moving through the lower branches during the cooler parts of the day, its distinctive call giving away its presence before it can be clearly seen in the dappled light beneath the canopy.

On clear days the view extends south to the Boi Clique Islands and northward across the Pacific toward the Marshall Islands, though the most dramatic sight is directly below, where the full extent of Nauru's environmental transformation from forested island to mined-out phosphate plateau becomes comprehensible in a single glance, with the white limestone Pinnacles glowing in the midday sun and the deep excavation pits casting blue shadows across the stripped terrain.

The ridge takes its name from the British naval officer who established a signal station here during the German colonial period, predating the Japanese occupation but retaining the designation through both eras, a rare example of colonial-era toponymy surviving in post-independence Nauru where most German and Japanese place names were either discarded or replaced after the island regained its sovereignty in 1968.

Access is via a rough track that climbs steeply from the coast road near the airport, and the final approach on foot is over uneven limestone pavement that requires care, particularly after rain when the surface becomes slippery and some of the old military structures have water pooling in their basements, creating hazards that are not always immediately obvious to the first-time visitor who may not appreciate how quickly the tropical rains transform the simple path into a treacherous descent.

It is the highest point in Nauru and offers the only comprehensive view of the island's terrain, both mined and intact.

The WWII Japanese installations provide tangible historical evidence of Nauru's role in Pacific conflict.

The area supports Nauru's endemic bird subspecies, making it a site of ecological as well as geographic interest.

02

Before you go

Current details checked July 2026

Best season
Year-round accessibility, though the wet season (November to February) may make the track more difficult; the dry season offers clearer views but is hotter.

Tropical storms can affect visibility; check weather before ascending.

Editorial guidance
Before you go 1
Wear sturdy shoes; the track and ridge surface are uneven and can be slippery.Editorial guidance
Before you go 2
Visit early morning or late afternoon for the best light and cooler temperatures.Editorial guidance
Before you go 3
A torch is useful if exploring the underground Japanese military chambers.Editorial guidance
03

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04

Practical notes

Note 1

Command Ridge is the highest natural point of Nauru at approximately 65 metres above sea level.

Note 2

A Japanese signal station from WWII remains partially intact on the ridge.

Note 3

The ridge marks the boundary between Aiwo and Buada districts.