Set sail for the Palmyra Atoll National Wildlife Refuge, pictured here. Created in 2001, this sanctuary is situated midway between the Hawaiian Islands and American Samoa. Spanning across a coral canvas, this refuge boasts a diverse ecosystem. Enveloped by an expansive barrier reef, you can explore three shallow lagoons and numerous islets. But wait, there"s more. The lush greenery here is a bustling neighbourhood that"s home to more than a million birds from 29 different species, like the masked booby, great frigatebird and sooty tern. It"s also one of the few places outside the Galápagos Islands where red-footed boobies are found. A wide variety of marine wildlife is in and around the atoll, including green sea turtles, hawksbill turtles and the mighty coconut crab, the world"s largest land invertebrate.