Sri Lanka’s Underground Secret: Exploring Nil Diya Pokuna

Tucked away in the lush highlands near Ella, Nil Diya Pokuna—which translates to "Blue Water Pond" in Sinhala—is one of Sri Lanka’s most intriguing and lesser-known natural wonders.

Nil Diya Pokuna is an underground freshwater pool located deep within a cave system near Ella, in the Uva Province of Sri Lanka. Believed to be linked to ancient tales from the time of King Ravana, this cave has remained a subject of fascination for both locals and adventurous travelers. The journey into the cave involves a short hike, a narrow and steep descent, and a bit of crawling and climbing before you reach the hidden pool approximately 80 to 100 feet below the surface.

Common FAQs About Nil Diya Pokuna

1. Where is Nil Diya Pokuna located?
It is located near Ella, in the Uva Province of Sri Lanka, about 6–7 km from the main town center.

2. How do I get to Nil Diya Pokuna?
The easiest way is to hire a tuk-tuk or taxi from Ella to take you to the entrance, which requires a short hike to reach.

3. Do I need a guide?
Yes, absolutely. The caves are dark, narrow, and can be dangerous without an experienced local guide.

4. Is it safe to visit?
With a knowledgeable guide and proper precautions, it is generally safe. However, it involves physical activity and is not suitable for those with mobility issues.

5. Can I swim in the pool?
Some visitors take a dip, but it is not officially recommended due to unpredictable conditions and unclear water depth.

6. What should I wear?
Wear durable, lightweight clothing and closed shoes with good grip. You may get wet or muddy.

7. Is it suitable for children?
Not recommended for young children due to the physical demands and safety concerns.

8. How long does the entire visit take?
Plan for at least 2–3 hours including the drive, hike, descent, and time inside the cave.

9. Is there an entrance fee?
There’s no official ticket, but you’ll need to pay the local guide. Prices vary.

10. When is the best time to visit?
During the dry season (December to April) when the ground is more stable and safe.

11. Is Nil Diya Pokuna open year-round?
Yes, but it's best avoided during heavy rains due to slippery and dangerous conditions.

12. Are there signs or directions?
Very minimal signage. You’ll need a guide to find and safely enter the cave.

13. How deep is the cave?
Approximately 80–100 feet below ground level.

14. Is the water really blue?
Yes, the pool has a clear, blue hue due to mineral deposits and light reflection.

15. Is this a popular tourist attraction?
No, it remains largely unknown to mainstream tourists, making it a hidden gem.

16. Can I go without a guide?
It is strongly discouraged and even considered illegal in some cases due to safety risks.

17. Are there other attractions nearby?
Yes. Ella Rock, Ravana Falls, and Little Adam’s Peak are nearby popular destinations.

18. Can I bring a camera?
Yes, but it should be waterproof or well-protected due to the damp and narrow environment.

19. Is the cave system connected to King Ravana’s legend?
Local folklore suggests a link to the mythical King Ravana, adding mystique to the site.

20. Is there mobile signal in the cave?
No, you will not have any mobile reception once inside.