Niue, Coral Chasm. Before reaching the chasm, one must follow a path through a field (strip) of needle rocks of coral limestone. The Niue Island is surrounded by steep limestone cliffs about 25 meters high, and a coastal strip of average 500 meters wide formed from coral origin limestone.
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/96483949@N00/192189850/">Coral Landscape at Togo Chasm, Niue</a>