The Derawan Islands archipelago in East Kalimantan is a treasure trove of natural marvels, with Maratua and Kakaban standing out as two of its most unforgettable wonders. These islands offer distinct yet equally captivating experiences, making them must-visit destinations for nature enthusiasts. From the thrilling underwater topography of Maratua and Kakaban to the unique stingless jellyfish lake, this duo embodies the diverse allure of the Derawan region. Exploring both Maratua and Kakaban promises a comprehensive and memorable journey through Indonesia’s pristine marine and terrestrial environments. A recent report by the East Kalimantan Tourism Agency on July 10, 2025, highlighted the increasing popularity of combined tours to Maratua and Kakaban, indicating a growing appreciation for their unique offerings.
Maratua, the larger of the two, is a stunning atoll that boasts a vast lagoon and spectacular wall dives. Its underwater realm is teeming with an incredible diversity of marine life, making it a prime destination for divers seeking thrilling encounters. Divers at Maratua often come face-to-face with reef sharks, barracudas in large schools, and even occasional hammerhead sharks patrolling the deeper waters. The sheer vibrancy of its coral reefs, adorned with soft and hard corals, provides a breathtaking backdrop for underwater exploration. One of Maratua’s most famous dive sites is “Turtle Traffic,” where divers can observe numerous green and hawksbill turtles swimming gracefully, resting, or feeding. On June 20, 2025, a dive group from a resort on Maratua reported seeing over ten turtles at this single site during a morning dive.
Just a short boat ride from Maratua lies Kakaban, an island holding a truly unique natural phenomenon: its isolated Jellyfish Lake. This ancient marine lake, separated from the open ocean, is home to four species of jellyfish that have evolved to lose their stingers due to the absence of predators. Swimming and snorkeling in the warm, brackish waters of this lake among thousands of these harmless, pulsating creatures is an ethereal and surreal experience that can’t be replicated anywhere else in the world except in Palau. Visitors are required to adhere to strict environmental guidelines, such as not using sunscreen, to protect this delicate ecosystem.
The combined appeal of Maratua and Kakaban provides a holistic and unforgettable experience. Maratua offers the thrill of diverse open-ocean diving and vibrant reef exploration, while Kakaban presents a rare and gentle interaction with unique marine life. Together, they showcase the extraordinary natural heritage of the Derawan Islands, inviting travelers to discover two of Indonesia’s most captivating wonders.