[00:00.201]The story of land building in the South Pacific may start with volcanic eruptions,
[00:05.639]but it doesn't end there.
[00:07.882]A volcano once formed an island here,
[00:10.786]but it sank back below the surface.
[00:13.167]Now it's on the rise again.
[00:16.358]This is the extraordinary Kingman Reef.
[00:20.508]Over 3,000 miles from the nearest continent,
[00:24.080]it is one of the last pristine coral reefs left in the world.
[00:28.710]As tourism and fishing are banned here,
[00:31.028]the reef is about as close as you'll get to the Pacific as it used to be before humans arrived.
[00:37.980]Part of what makes Kingman extraordinary is the 200 types of coral found here.
[00:43.855]But there's also something else.
[00:47.075]And it's helping to build the reef.
[00:49.690]Giant clams, everywhere.
[00:54.218]More than you'll see on any other reef in the world.