Trip Type: Fun Diving | 15th – 21st August 2026
Where pristine reefs, powerful currents, and extraordinary marine life come together.
Located in the remote Derawan Archipelago of East Kalimantan, Maratua is one of Indonesia’s most spectacular diving destinations. Surrounded by turquoise lagoons and thriving coral ecosystems, the region is renowned for its encounters with manta rays, sea turtles, reef sharks, and vast schools of pelagic fish.
From the exhilarating channels of Big Fish Country to the manta cleaning stations of Sangalaki and the unique stingless jellyfish lake of Kakaban, every dive offers a new adventure. With untouched reefs, vibrant marine biodiversity, and breathtaking island scenery, Maratua delivers an unforgettable diving experience in the heart of the Coral Triangle.
Maratua’s signature drift dive, known for strong currents, reef sharks, schools of barracuda, and thrilling pelagic encounters.
Home to famous manta cleaning stations where divers can witness graceful manta rays gliding effortlessly above the reefs.
A diverse dive destination featuring coral gardens, dramatic walls, schooling fish, and the chance to spot thresher sharks.
Explore vibrant coral reefs, turtle-filled bays, colorful pinnacles, and stunning wall dives that showcase the incredible biodiversity of the Coral Triangle.
15th August | Arrival & Check Dive
16th – 19th August | Dive Days
20th August | Final Dive Day
21st August | Departure
Note: Itinerary subject to weather and safety considerations.
Witness majestic manta rays gliding effortlessly at Sangalaki’s famous cleaning stations.
Dive exhilarating channels filled with barracuda schools, reef sharks, and pelagic life.
Spot green and hawksbill turtles cruising effortlessly across Maratua’s vibrant reefs.
Snorkel among thousands of harmless stingless jellyfish in one of the world’s most unique marine ecosystems.
Explore colorful coral gardens, dramatic walls, and thriving marine biodiversity in the heart of the Coral Triangle.
Nestled in the heart of the Coral Triangle, Sienna Resort offers the perfect blend of island comfort and spectacular ocean views. Surrounded by turquoise lagoons and pristine reefs, it serves as an ideal base for exploring Maratua, Kakaban, and Sangalaki.
Standard Room (Twin Sharing): INR 1,19,000 + Taxes
Deluxe Room: Available on request. Ask us for upgrade options.
Let us know in advance to reserve gear.
Yes, recommended. WiFi is available onboard, but limited.
Check-in: 2 PM | Check-out: 12 PM
28°C to 30°C
Limited by the government. Issued first-come, first-served. We’ll do our best to secure yours.
Mumbai → Kuala Lumpur → Tawau → Semporna → Seaventures
Yes, rental gear is available. Check Gear Rental above.
Boat dives at Sipadan, Mabul, Kapalai + night & house reef dives.
Absolutely. Let us know if you’d like to do Advanced or any specialties.
Yes. DAN or equivalent is required.
15th–21st August 2026 (6N/7D) in Maratua, Indonesia with 15 dives included, accommodation at Sienna Resort, daily meals, and round-trip transfers from Berau.
Yes. Dive insurance is mandatory for all participants. Travel insurance is also strongly recommended.
Minimum Open Water Diver (OWD) certification. 20+ logged dives are recommended for some current-based dive sites.
30% advance payment to confirm your booking. Remaining 70% balance due 3 months before departure.
More than 6 months before departure: Full refund of advance payment minus bank charges.
Between 6–3 months before departure: 30% advance is non-refundable.
Less than 3 months before departure: No refunds apply.
No. Unused dives are non-refundable and non-transferable.
Flights, dive equipment rental, dive insurance, soft drinks, alcoholic beverages, tips, whale shark excursion surcharge, and personal expenses.
Yes. Equipment rentals, tips, optional activities, beverages, and other personal expenses are payable locally.
Yes. Dive schedules, boat operations, and island excursions are subject to weather and sea conditions and may be adjusted for safety.
Yes. Additional dives, including night dives and select specialty dives, may be available at an additional cost, subject to conditions and scheduling.