An Ocean Geographic Signature Expedition
Join us for this once-in-a-lifetime dive expedition
From USD 7180 (twin share) .
Where Two Worlds Collide
Join us on a once-in-a-lifetime dive expedition that retraces the evolutionary theory of one of the greatest naturalists in history—Alfred Russel Wallace. This is more than just a voyage; it’s a journey across one of Earth’s most dramatic biological boundaries—the Wallace Line—where the Asian and Australasian realms meet in a spectacular marine and ecological collision.
On this exclusive 11-night / 12-day expedition, we will cross not only the Equator but also the invisible biogeographic frontier that separates species of distinct origin—exploring marine habitats so rich, so diverse, they defy imagination.
The Wallace Line: Nature's Hidden Divide
More than a concept on a map, the Wallace Line is a natural barrier that shaped the evolutionary fate of Earth’s biodiversity. First observed by Wallace in the 19th century, this deep-sea boundary separates the fauna of Asia from that of Australia and New Guinea. While terrestrial creatures rarely crossed its abyssal depths, the marine world around it flourished into a mesmerizing hybrid of species from both sides. We’ll dive into this convergence zone where unique evolutionary lineages still echo Wallace’s original insight—encountering creatures shaped by currents, isolation, and ancient tectonics.
The Expedition Route: From Sulawesi to Borneo via the Makassar Strait
Embark in Palu, Central Sulawesi, and journey north through the nutrient-rich Makassar Strait, crossing the Equator en route to Tarakan, Borneo. Along this route, we follow the path of the powerful Indonesian Throughflow—a major ocean current that moves warm Pacific waters through Indonesia and into the Indian Ocean, influencing marine life, coral growth, and even global climate systems. We’ll explore remote and rarely visited reefs on both sides of the Wallace Line—diving coral gardens that sprawl like underwater cathedrals and walls that plunge into pelagic depths teeming with life.
Highlights
Western Sulawesi Reefs
- Virgin coral reefs blanketed in soft and hard corals
- Frequent sightings of pelagics and reef sharks
- Hidden bays and picture-perfect island formations
Equator Crossing & Blackwater Diving
- Celebrate your symbolic Equator crossing
- Dive into the dark for ethereal blackwater encounters with alien-like larvae, pelagics, and deep-sea drifters
The Derawan Archipelago (East Kalimantan)
- Sangalaki: Manta feeding frenzies
- Derawan: Sea turtles galore, thriving seagrass meadows
- Maratua: Barracuda tornadoes, threshers, manta cleaning stations
- Kakaban: Hammerhead sightings and a mystical landlocked jellyfish lake
- Samama: A macro photographer’s playground—critters hide in plain sight
The Expedition Platform – MV GAIA LOVE
A luxury steel-hull liveaboard, MV GAIA LOVE was purpose-built for exploration and elegance. With only 11 ensuite cabins (6 upper deck / 5 lower deck), this vessel provides the perfect balance of space, comfort, and top-tier dive support.
- Multiple decks with panoramic lounges and sun decks
- Spacious cabins (20m²) with ensuite bathrooms
- Advanced navigation and safety systems for remote travel
- Indonesian, Chinese, and international cuisine—don’t miss the roast dinners or chocolate desserts!
- Vegetarian and special diets catered on request
Daily Dive Routine: Up to 4 dives per day including blackwater and night dives, split into small groups by experience. Daily briefings and photo/naturalist presentations included.
Expedition Package Includes
- 11 nights twin-share accommodation aboard GAIA LOVE
- All meals, soft drinks, and Nitrox
- All dives, tenders, guides, and blackwater night dives
- Ocean Geographic expedition pack & reef interpretation briefings
Photography & storytelling mentorship by OG Fellows
Cost & Booking
Upper Deck: USD 7680 per person
Lower Deck: USD 7180 Per Person
OG Premier & Life Members Price: USD 6780 Lowerdeck or USD 7280 Upper Deckpp
Deposit: USD $2,500 (Balance due 1 May 2026)
Fuel Surcharge and Park Fees applicable
This is not just a dive trip. It’s a passage through time, past and present, where ocean currents, evolution, and geography have collided for millennia—waiting for you to discover the magic.
Join the Expedition and be part of the legacy to last long beyond our human lifetimes.
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