Rangko Cave is a unique natural attraction located in Rangko Village, Boleng District, West Manggarai Regency, Flores, East Nusa Tenggara, Indonesia. Also known as Goa Rangko, this site is renowned for its naturally formed saltwater pool, featuring crystal-clear turquoise water, hidden within a limestone cave. From its glowing blue pool to the peaceful atmosphere inside the cave, it’s the perfect destination for travelers looking for something off the beaten path.
Inside the cave, you’ll also find thousands of stalactites and stalagmites formed over thousands of years, adding a mystical atmosphere and natural beauty.
Location and How to Get There
- Distance from Labuan Bajo: ±15 km
- Transportation:
- Drive a car or ride a scooter from Labuan Bajo to Rangko Village (±30 minutes)
- Continue with a small wooden boat from Rangko dock to the cave entrance (±10–20 minutes)
Although the journey can be a bit of an adventure, the experience is well worth it once you arrive.
Best Time to Visit
The best time to visit is between 12:00 PM and 3:30 PM, when sunlight enters the cave through a natural opening. This sunlight creates a magical blue glow in the pool, making it one of the most beautiful cave pools in Indonesia.
Entrance Fees and Other Costs
- Entrance Fee:
- Local tourists: IDR 20,000
- Foreign tourists: IDR 50,000
- Boat Rental: IDR 200,000–400,000 (round trip, depends on the number of people and negotiation)
Things to Do at Rangko Cave
- Swim in the saltwater pool inside the cave
- Photography: The natural lighting and rock formations are perfect for stunning photos
- Explore the stalactites & stalagmites
- Visit the sandbar that appears during low tide nearby
Tips and Important Notes
- Bring a change of clothes, water shoes, and toiletries
- Be cautious — the cave floor can be slippery
- Bring your own drinking water and snacks — facilities are limited
- Consider hiring a local guide for a safer and more insightful experience
Challenges and Conservation
As Rangko Cave gains popularity, concerns about environmental sustainability are increasing. Studies have shown a decline in the quality of the cave environment due to unmanaged tourism.
To preserve its beauty, it’s essential to manage visitor numbers and implement conservation practices — including cleanliness, waste control, and local involvement.