Ambon to Banda to Saumlaki: the one-way Forgotten Islands route
Introduction to the Ambon-Banda-Saumlaki Route

The Ambon to Saumlaki route, often referred to as the Forgotten Islands journey, is a captivating liveaboard itinerary that spans approximately 10 to 12 nights. This one-way voyage begins in Ambon and concludes in Saumlaki, taking divers through some of the most remote and pristine waters in the Banda Sea. It’s a journey that promises an exploration of unique marine life, vibrant coral reefs, and the thrill of pelagic encounters, particularly during the hammerhead season from September to November.
Key Stops Along the Route
- Nusa Laut/Molana: Known for its high biodiversity, these reefs offer a mix of macro life and occasional larger visitors like hammerheads and cetaceans.
- Banda Islands: Includes Banda Neira, Hatta, Run, Ai, Suanggi, and the famous Gunung Api Lava Flow. Each site offers distinct underwater landscapes and abundant marine life.
- Manuk Island: Also known as “Snake Island,” it’s famous for its geothermal vents and large populations of banded sea kraits.
- Serua: A less-visited island offering the chance for exploratory dives and encounters with pelagics.
- Forgotten Islands: Romang, Terbang, Dusborgh, and Komba offer remote diving with giant coral formations and schooling hammerheads.
Banda Islands: A Historical and Marine Treasure
The Banda Islands, a central highlight of this itinerary, are steeped in history and natural beauty. Banda Neira, with its historic harbor, offers dives around old sea walls where mandarinfish dance at dusk. The nearby Gunung Api features the renowned Lava Flow, where divers can witness the remarkable regrowth of hard corals on black volcanic substrate. Pulau Hatta and Pulau Ai present steep walls teeming with reef fish and pelagic species, while Suanggi Island is a hotspot for schooling fish and the elusive hammerhead shark.
Manuk Island: The Realm of Sea Snakes
Manuk Island, with its underwater geothermal activity, is a unique diving destination. The warm vents attract a high concentration of banded sea kraits, providing divers with a surreal experience of swimming amidst these non-aggressive sea snakes. The island’s steep walls are home to a variety of pelagic species, including tunas, barracudas, and the occasional hammerhead shark.
Exploring the Forgotten Islands
The latter part of the journey takes divers to the remote Forgotten Islands, where the sense of isolation enhances the adventure. Pulau Romang and Pulau Terbang are known for their impressive coral formations and the presence of large pelagics, including hammerheads and reef sharks. Dusborgh, in particular, is a noted hotspot for hammerhead encounters, rewarding divers with thrilling sightings during the peak season. Komba, with its active volcanic landscape, offers a mix of macro delights and pelagic action in its surrounding waters.
The Ideal Season: September to November
This route is particularly suited for trips between September and November, aligning with the hammerhead shark migration. Divers are likely to encounter these striking creatures in significant numbers, especially around the Banda Islands and the deeper drop-offs of the Forgotten Islands. The relatively stable weather conditions during this period also enhance the likelihood of smooth crossings between islands.
Sea Conditions and Challenges
The Ambon to Saumlaki route involves several open ocean crossings, which can present challenges. While the sea conditions are generally favorable during the hammerhead season, divers should be prepared for potential swells and currents, particularly around the more exposed islands like Suanggi and Manuk. These conditions make the route best suited for experienced divers who are comfortable with drift dives and open water conditions.
Who Should Choose This Route?
This liveaboard journey is ideal for divers seeking adventure and the allure of remote diving destinations. It’s perfect for those with a passion for big pelagic encounters, vibrant coral reefs, and the chance to explore less-trodden paths. With its combination of historical intrigue, unique marine life, and the thrill of hammerhead sightings, the Ambon to Saumlaki route offers an singular experience for seasoned divers looking to expand their horizons in the Banda Sea.
To compare routes and dates, see our Banda Sea destinations and routes and itineraries, weigh options in the pricing guide, then check availability and book your Banda Sea liveaboard.