Indonesia
The Auri Islands lie in the far western reaches of Indonesia's Papua Province, a scattering of tiny coral and volcanic islets in the Cenderawasih Bay that remain among the least visited inhabited islands in the Indonesian archipelago. This isolation has preserved a marine environment of staggering richness and a traditional Melanesian culture that continues to evolve on its own terms, largely unaffected by the tourist development that has transformed other parts of the region.
The waters surrounding the Auri Islands benefit from their position within Cenderawasih Bay—the largest marine national park in Indonesia, covering 14,500 square kilometers of protected ocean. The bay's claim to scientific fame is its resident population of whale sharks, which gather year-round near the bagan (floating fishing platforms) of the local fishermen. Unlike the seasonal whale shark encounters at most global destinations, Cenderawasih's population is permanent—these massive, gentle fish have developed a symbiotic relationship with the fishermen, feeding on the small baitfish that escape from the bagans in exchange for the fishermen's belief that the sharks bring good luck. Swimming alongside a twelve-meter whale shark in the calm, warm waters of the bay is one of the most extraordinary wildlife encounters available anywhere.
The reefs around the Auri Islands display the full coral diversity of the Coral Triangle—the global epicenter of marine biodiversity. Hard corals in dazzling variety, soft corals pulsing in currents, and sponges in every conceivable form create an underwater landscape that rewards divers and snorkelers of every skill level. The relatively limited diving pressure on these reefs means that fish populations are abundant and unusually unafraid of divers, creating intimate encounters with species that flee at the first sign of bubbles on more heavily visited reefs.
The islands' inhabitants are Melanesian peoples whose traditional culture revolves around the sea. Fishing remains the primary occupation and food source, supplemented by small-scale agriculture on the larger islands. The communities maintain traditional architectural styles—houses built over the water on stilts, with palm-thatch roofs and open-sided living areas that maximize airflow in the tropical heat. Cultural exchanges between cruise passengers and island communities, when facilitated by respectful guides, offer rare insights into a way of life that has evolved in relative isolation for centuries.
Expedition cruise ships and liveaboard dive vessels reach the Auri Islands from Biak or Manokwari on the New Guinean mainland. The journey itself, through the protected waters of Cenderawasih Bay, often provides whale shark sightings en route. Zodiac and small-boat excursions allow close approaches to the fishing platforms where whale sharks congregate. The best diving conditions occur during the dry season from October through April, though whale sharks are present year-round. Water temperatures hover near 29°C regardless of season, and the equatorial location ensures consistent twelve-hour days and warm air temperatures (27-33°C) throughout the year.