Split image of pristine coral reef and island, Rongelap, Marshall Islands, Micronesia, Pacific

split image pristine coral reef coral island rongelap marshall islands micronesia pacific ocean ailuk atol atoll blue coast dive diving diver lagoon two people research scuba survey tropical turquoise conservation day outdoors people recreation underwater divers scuba diver scuba divers scuba diving surface surface level sea seas ocean oceans coral reefs reef reefs islands pacific coasts lagoons horizontal