Blue Rings Reef Sabah: Discovering One of the World’s Rarest Marine Sinkholes

☕️ 6 minute read

Blue Rings Reef Sabah offers the rare opportunity to discover one of only two known double ringed marine sinkholes in the world, alongside vibrant coral reefs, crystal clear waters and exceptional snorkelling at nearby Laila Reef.

Blue Rings Reef Sabah may be one of the newest experiences offered by Borneo Rainforest Lodge, but it introduces visitors to something remarkably rare: one of only two known double ringed marine sinkholes in the world, combined with exceptional snorkelling and a journey into the heart of Danum Valley.

Sabah has never struggled to attract nature lovers. Divers come for the world class reefs and marine life. Wildlife enthusiasts travel halfway across the globe hoping to spot orangutans in ancient rainforests. Few destinations can rival the diversity found within this corner of Borneo.

Now, visitors to Borneo Rainforest Lodge have another reason to extend their adventure.

The lodge has recently introduced an experience that takes guests beyond Danum Valley and out to sea, combining two of Sabah’s greatest natural treasures into a single journey. One moment you’re exploring a rainforest estimated to be 130 million years old. Next, you’re cruising across turquoise waters towards one of the rarest marine formations on Earth.

Welcome to Blue Rings Reef.

A Different Side of Lahad Datu

The guided snorkelling excursion departs from Payang Bay, with Blue Rings Reef located approximately 30 minutes away by boat. While the journey itself is relatively short, it reveals a side of Lahad Datu that many visitors never experience.

Most travellers know Lahad Datu as the gateway to Danum Valley, yet relatively few venture offshore. That may soon change.

The journey itself is part of the experience. As the coastline recedes into the distance and Mount Silam stands watch over the bay, the water gradually shifts through brilliant shades of blue. Apart from the occasional fishing boat, there is little to interrupt the scenery.

The waters here remain remarkably pristine. As the boat leaves the bay behind, the coastline gradually fades into the distance, replaced by endless shades of blue stretching towards the horizon. Before reaching Blue Rings Reef, the boat stops at nearby Laila Reef, where visitors can snorkel amongst healthy coral gardens and abundant marine life. While Blue Rings Reef may be the headline attraction, Laila Reef provides an impressive introduction to the underwater world that thrives along Sabah’s east coast.

Snorkelling Laila Reef

The reef immediately reveals why Sabah enjoys such a formidable reputation amongst divers and snorkellers.

Visibility is often excellent, allowing visitors to appreciate the remarkable coral formations below. Schools of reef fish weave effortlessly through the coral gardens while sunlight dances across the seabed.

Among the most striking features are the rose corals scattered throughout the reef.

Large, intricate and beautifully formed, they resemble giant underwater blooms frozen in time. Their layered structure provides shelter for countless marine species and creates a landscape unlike anything found on land.

The absence of crowds only enhances the experience. Rather than competing for space with dozens of boats, visitors often find themselves immersed in a marine environment that feels peaceful, natural and largely untouched.

Discovering Blue Rings Reef

The highlight of the excursion lies nearby. Blue Rings Reef is one of only two known double ringed marine sinkholes in the world, making it a geological rarity as well as a marine attraction.

Viewed from above, the formation is unmistakable. A circular ring of vivid turquoise surrounds a darker centre, creating a striking contrast against the surrounding sea. The deeper sinkhole absorbs light differently, producing an intense shade of blue that gives the reef its name.

Its remote location has helped preserve both its beauty and its sense of mystery.

Unlike many famous marine attractions that have become heavily visited, Blue Rings Reef remains relatively unknown, even amongst seasoned travellers to Sabah. That feeling of discovery is part of its appeal.

From Reef to Rainforest

What makes this experience particularly compelling is the contrast it offers. Few places allow travellers to explore a thriving coral reef in the morning and venture into one of the world’s oldest rainforests later the same day.

For guests staying at Borneo Rainforest Lodge, Blue Rings Reef provides a natural extension to the Danum Valley experience. Together, they showcase the extraordinary biodiversity that has made Sabah one of Southeast Asia’s premier nature destinations.

The rainforest reveals life beneath the canopy. The reef reveals life beneath the sea. Both offer powerful reminders of how much natural beauty still exists when ecosystems are protected and allowed to thrive.

Refuelling Sabah Style

Adventure tends to work up an appetite, and fortunately, the Blue Rings Reef experience doesn’t overlook the food.

The day began with a hearty breakfast upon arrival at Payang Bay before we headed out to sea. Freshly prepared and full of local flavours, it was exactly what was needed before a morning spent snorkelling and exploring the reef.

Returning from the water, however, was arguably even more rewarding.

Waiting for us was a seafood barbecue spread that showcased some of Sabah’s finest coastal flavours. Fresh seafood, grilled to perfection, disappeared quickly after a few hours in the sea.

The highlight for many visitors, however, is likely to be Borneo Rainforest Lodge’s famous laksa.

Rich, fragrant and packed with flavour, it has developed something of a reputation amongst returning guests. After a morning spent exploring Laila Reef and Blue Rings Reef, it was the sort of comforting meal that made everyone fall silent for a few moments, focusing entirely on what was in front of them.

Not a bad way to end a morning in paradise.

Why Blue Rings Reef Deserves Attention

Sabah’s reputation for extraordinary nature is well deserved.

Yet even in a state famous for its reefs, islands, wildlife and rainforests, there are still places capable of surprising seasoned travellers.

Blue Rings Reef is one of them.

Paired with the ancient rainforest of Danum Valley, it offers a fresh perspective on a destination many thought they already knew. The combination of exceptional snorkelling at Laila Reef, the opportunity to witness one of the world’s rarest marine formations, and the seamless connection with Danum Valley creates an experience unlike any other currently offered in Sabah.

For travellers seeking more than a typical beach holiday or rainforest excursion, it presents a chance to experience two very different worlds in a single journey.

Blue Rings Reef is a reminder that even in a destination as celebrated as Sabah, there are still surprises waiting to be discovered.

The reef may be the newest chapter in the story, but it is only part of what makes this corner of Sabah so special. Beyond the coastline lies Danum Valley, home to one of the oldest rainforests on Earth and the reason many travellers make the journey to Lahad Datu in the first place.

If you would like to learn more about my experience at Borneo Rainforest Lodge and exploring Danum Valley, you can read the full article here.

For more information about Blue Rings Reef and available packages, visit https://danumvalley.rainforestlodge.com/