Palmyra Atoll

One of the Healthiest Coral Systems Remaining

Palmyra's reef system is among the most studied and most intact in the Pacific. The atoll sits at the northern edge of the equatorial upwelling zone, which delivers nutrient-rich water and supports exceptional coral growth and fish biomass. Sharks are abundant, which is taken as a reliable indicator of ecosystem health. The surrounding waters form part of the Pacific Remote Islands Marine National Monument. Researchers from institutions around the world use Palmyra as a baseline site precisely because it represents what a coral reef can look like without chronic human pressure.

Tightly Controlled but Genuinely Accessible

Palmyra is one of the few US Minor Outlying Islands where civilian access is possible and actively, if carefully, managed. The Nature Conservancy runs a small ecotourism programme offering guided visits for divers and wildlife enthusiasts, with numbers strictly limited to protect the ecosystem. Access is by chartered flight from Hawaii. Accommodation is basic and functional rather than comfortable, and the experience is shaped entirely around the natural environment rather than visitor amenity. This is not a resort; it is a field station that occasionally accepts guests.

Remote, Remarkable and Worth the Effort

For divers and naturalists with the means and motivation to get there, Palmyra Atoll offers conditions that are genuinely difficult to find anywhere else. The combination of healthy sharks, abundant fish, intact coral and almost no other visitors produces an underwater experience that stands apart from anything available at more accessible destinations. It is expensive, logistically demanding and not for everyone. For the right traveller, it is exactly the right place.