63 170°05′E. 170°10′E. N Sooty Tern colony Jaboerukku-îô Arumeni-îô Reef margin at surface or shallowly submerged. Clearly defined on airphotos. Reef margin deeply submerged, sometimes parallel to surface margin. Poorly defined on airphotos. Projection above reef flat; sand, gravel, and rubble accumulation, or consolidated remnants of raised reef, not covered by vegetation. Islands. Inner line shows limit of vegetation cover. Outer line marks beaches, connecting bars and horns, rubble deposits and raised reef. Boulder ridges. 12°15′N. 12°10′N. Bikar Pass Jaboero-îô SW SW Bikor X - Camp SW - Shipwreck Based on H.O. Chart No.6024 Kilometers 0 1 2 3 Statute Miles 0 1 2 170°05′E. 170°10′E. Figure 3. Bikar Atoll