Properties in Giring-Giring

Biduk-Biduk – Hidden Coastal Gem with Turquoise Lakes and Coral Gardens

Biduk-Biduk is one of Borneo's most extraordinary and under-visited coastal destinations – a place where freshwater karst lakes of impossibly turquoise colour sit metres from the Sulawesi Sea, where coral reefs in excellent condition surround small offshore islands, and where the village pace of life has barely changed despite the occasional trickle of adventurous travellers discovering this corner of northeastern Borneo. The district occupies the southern portion of the Berau coast, separated from the famous Derawan Archipelago by a stretch of shoreline that remains largely pristine. The Biduk-Biduk area takes its name from the traditional wooden fishing boats (biduk) that have plied these waters for centuries. The combination of freshwater lakes, coral reefs, jungle-backed beaches and traditional fishing culture creates a destination experience that rivals more famous Indonesian destinations – with a fraction of the visitors.

Tourism & Attractions

The Danau Labuan Cermin (Mirror Lake) is the area's centrepiece attraction – a lake of startling clarity fed by both freshwater springs and saltwater intrusion that creates a layered water column, allowing simultaneous snorkelling in fresh and salt water. The visibility is extraordinary, with colourful fish visible at depth in crystal-clear conditions. Offshore, the coral reefs support dense marine life including manta rays, reef sharks and sea turtles that also nest on the beaches here. The local fishing village of Biduk-Biduk offers authentic homestay accommodation and traditional food. Several small uninhabited islands offshore provide perfect snorkelling day-trip destinations accessible by fishing boat. The forested hills behind the coast are home to wildlife including proboscis monkeys visible from the beach at low tide.

Real Estate Market

Biduk-Biduk's property market is emerging and remains very affordable by Indonesian coastal standards. Simple guesthouses and homestays dominate the accommodation offering, with very few purpose-built tourist resorts. Beachfront land is available at prices that would be unthinkable in Bali or Lombok given the comparable natural quality of the environment. The constraints are access – Biduk-Biduk requires a long drive from Tanjung Redeb on roads that are not always in good condition – and limited tourist infrastructure. Developers who invest in improving access and basic hospitality amenities could unlock significant value as the destination becomes better known. Land registration and title clarity varies; thorough due diligence is essential.

Rental & Investment Outlook

The tourism investment case for Biduk-Biduk is compelling: world-class natural assets, very low current prices, and a growing Indonesian domestic travel market hungry for "undiscovered" destinations. Instagram and travel blogs have begun to bring Biduk-Biduk to wider attention, and the trajectory mirrors what happened to similar "hidden gem" destinations in Lombok or Flores a decade ago. A small eco-resort here, properly positioned in the domestic and regional adventure travel market, could generate strong occupancy from the niche but growing segment of travellers seeking authenticity over mass tourism. The key challenge is managing the access problem and building reliable supply chains for food, materials and staffing in a remote location.

Practical Tips

Biduk-Biduk is approximately 180 km from Tanjung Redeb by road, with the journey taking 4–5 hours depending on road conditions. The road passes through impressive forest scenery and several river crossings. Coming in the dry season (April–October) gives the best road conditions. For Mirror Lake (Labuan Cermin), bring snorkelling gear – rental availability is inconsistent. The lake is best experienced in morning light when the water is calmest. Accommodation is basic homestay standard; book ahead during Indonesian school holidays as capacity is genuinely limited. Bring cash – ATMs and mobile payment coverage are unreliable. Boat trips to offshore reefs and islands should be arranged with the local fishing community the evening before departure to ensure a boat and skipper are available.

Berau – East Kalimantan's Gateway to the Derawan Islands

Berau Regency lies in the northern part of East Kalimantan province, along the Celebes Sea. The region is world-famous for the Derawan archipelago, where crystal-clear waters host coral reefs, manta rays and green sea turtles. On the mainland, the Berau River estuary, dense rainforests and traditional Bulungan, Dayak and Malay communities give the region its cultural fabric. Berau balances coastal marine tourism with the ecotourism of interior Borneo.

Where is Berau?

Berau occupies the northern tip of East Kalimantan province, roughly 500 km north of Balikpapan. The regency capital is Tanjung Redeb, sitting at the mouth of the Berau River. Kalimarau Airport connects the regency with daily flights from Balikpapan and Jakarta. The Derawan Islands are reached by boat from Tanjung Batu in about 2 hours.

What to See?

1. Derawan Island

Derawan is the iconic diving and snorkelling paradise of the region. White-sand beaches, over-water bungalows and crystal-clear water define the experience – green sea turtles are frequently seen directly from the pier.

2. Kakaban Island and its Jellyfish Lake

Kakaban Island hides a lake inhabited by four unique species of non-stinging jellyfish. Only a handful of such lakes exist worldwide; visitors can swim freely among the jellyfish.

3. Sangalaki Island – Manta Rays

Sangalaki is one of Southeast Asia's most important manta ray dive sites. For much of the year dozens of mantas can be seen on a single dive in the plankton-rich waters surrounding the island.

4. Maratua Atoll

Maratua is the most remote island in the group, with a growing number of luxury resorts and dive lodges. Its cave system and mangrove lagoon offer rare experiences.

5. Labuan Cermin Lake

Located in the Biduk-Biduk district, Labuan Cermin is a rare two-layer lake – freshwater on top, saltwater below, with a mirror-clear surface. It's an excellent spot for day trips and swimming.

Culture and Food

Berau's cultural roots trace back to the Bulungan Sultanate, with traditional Dayak carving and a mix of Bulungan and Banjar Malay communities. Local cuisine is dominated by seafood – sambal gami spicy fish, nasi kuning berasan and fresh crab dishes are regional favourites. Markets also showcase palm oil, forest produce and handicrafts.

Real Estate Market and Investment

Berau's property market splits into two segments: mainland urban property in Tanjung Redeb and island tourism investment in the Derawan group. Tanjung Redeb family homes and apartments see stable local demand from mining and oil industry employees. Tourism properties on Derawan and Maratua – bungalows, small guesthouses, dive lodges – are increasingly attractive to foreign investors, although island development is constrained by strict environmental regulations. Rental yields in the tourism segment range from 6–10%.

Practical Tips

The best time to visit the Derawan Islands is June to October, when seas are calmest and underwater visibility peaks. Book fast-boat crossings from Tanjung Batu in advance during high season. Power on the islands is generator-based, and reliable internet is limited to the larger resorts. Currency exchange and ATMs are concentrated in Tanjung Redeb, so bring cash when heading to the islands.

East Kalimantan is Borneo's largest province, where the Derawan Islands' marine paradise, the Mahakam River's culture, and the new capital Nusantara converge. The region is world-famous for diving, sea turtles, and the stingless jellyfish lake.

Where is East Kalimantan?

The province is located on Borneo's eastern coast, along the Celebes Sea. Balikpapan and Samarinda are the main cities, both with international airports. Indonesia's planned new capital, Nusantara, is currently under construction in the province's northern part.

What to See?

1. Derawan Islands – Marine Paradise

The Derawan Islands are an archipelago with crystal-clear waters where sea turtles, manta rays, and sponges await. Kakaban Island's stingless jellyfish lake is unique: the jellyfish don't sting, and you can swim among them. Sangalaki Island is a nesting site for manta rays and sea turtles.

2. Kutai National Park

Kutai National Park is one of Borneo's oldest protected areas. Orangutans, Bornean elephants, and rare bird species live here. The park spans rainforests around Sangatta.

3. Mahakam River

Indonesia's third-longest river is the stage for Dayak and Banjar culture. River cruises offer sightings of dolphins, traditional villages, and floating markets. Tenggarong and Kutai Kartanegara are historically significant towns along the river.

4. Nusantara – The New Capital

Nusantara, Indonesia's planned new capital, is currently under construction in northern East Kalimantan. The implementation is in progress, and the region is becoming an increasingly important tourism and economic hub.

5. Balikpapan and Samarinda

Balikpapan is the oil industry center, but Kumala Beach and local gastronomy are also attractive. Samarinda is the gateway to the Mahakam River, from where river excursions depart.

When to Visit?

March–October is the dry season, ideal for diving at the Derawan Islands and river tours. The jellyfish lake is visitable year-round.

How Long to Stay?

5–7 days recommended:

• 2–3 days: Derawan Islands, diving, jellyfish lake
• 1–2 days: Mahakam River cruise
• 1 day: Kutai National Park
• 1 day: Balikpapan or Samarinda

Renting or Investing in East Kalimantan?

If you're considering renting or investing in property in East Kalimantan, these resources on our site can help you make informed decisions:

• Indonesian Property FAQ – answers to the most common questions about renting and buying
• Land Zoning Guide – understanding Indonesian land use regulations
• Indonesian Real Estate Terminology – key terms explained
• Property Guide – comprehensive guide to Indonesian real estate
• Living in Indonesia – essential guide for expats
• Balikpapan Guide – local insights and practical tips

Official Resources

For further information about East Kalimantan, these official sources may be helpful:

• Indonesia Travel – official tourism portal
• East Kalimantan Provincial Government – regional government information
• Bank Indonesia – currency and exchange rate data
• BMKG – weather and climate information
• Directorate General of Immigration – visa regulations for foreign visitors

Summary

East Kalimantan is where marine experiences meet river culture. The Derawan Islands offer world-class diving, while the Mahakam River provides an authentic Borneo experience.