Just off the coast of Rinca Island, surrounded by dense mangrove forests, lies Kalong Island—a small yet magical destination in Komodo National Park. Named after the Indonesian word kalong, which means bats, this island is home to one of the largest colonies of large flying foxes (Pteropus vampyrus) in the region.

With an estimated 11,300 flying foxes soaring through its skies (as of 2022), Kalong Island is a vital habitat actively monitored by park rangers twice a month. These nocturnal mammals play a crucial role in the ecosystem, acting as pollinators for fruit trees like durians and helping maintain the biodiversity of Komodo’s unique flora.

A Sunset Like No Other

As the sun begins to dip below the horizon, tourists on anchored boats surrounding Kalong Island prepare for an awe-inspiring natural show. At twilight, thousands of flying foxes emerge from their mangrove roosts in dramatic fashion, forming a dark, swirling ribbon across the sky. They head off on long nightly journeys to Komodo Island, Rinca, and even the mainland of Flores, in search of fruit and nectar.

This daily ritual transforms the skies above Kalong Island into a living, moving silhouette, adding a surreal atmosphere to the already stunning sunset views. For many travelers, this is a highlight of their journey through the Komodo archipelago.

Important Visitor Guidelines

To ensure the protection of Kalong Island’s ecosystem and its resident bats, visitors must adhere to the following rule:

• Drones and any form of Unmanned Aircraft Systems (UAS) are strictly prohibited around Kalong Island, especially during the flying foxes’ active hours at sunset. The noise and movement of drones can disturb the bats and alter their natural behavior.

Whether you’re a nature enthusiast, a photographer, or simply someone seeking serenity, Kalong Island offers an unforgettable evening experience. Witnessing thousands of bats in flight against a golden-orange sky is a moment that stays with you forever.