Subscribe now

Alfred Wallace’s expedition: Cruise Indonesia exploring nature and evolution - 1 place remaining

Contact an expert to discuss or book this tour

Book 2025

Book 2026

Phone +44 (0)203 642 0538

22 January 2025 - 13 days from $14,350 (USD) - One berth available in a shared cabin for a male guest.

29 January 2026 - 13 days from $15,100 (USD) 


Explore the Maluku Islands (Spice Islands) and Raja Ampat Islands as Wallace did, marvelling at their biodiversity and stunning beauty. You will cruise aboard a 22-berth luxury crewed schooner and visit several sites that were important to Wallace’s discoveries.

Alfred Russel Wallace was undoubtedly one of the greatest naturalists of all time. Not only did he jointly publish the theory of evolution by natural selection with Charles Darwin in 1858, but he made many other major contributions to biology and to subjects as diverse as glaciology, astrobiology, anthropology and epidemiology. He spent eight years in the region that is now Singapore, Malaysia and Indonesia and the book he wrote about his journey, The Malay Archipelago; The land of the orang-utan and the bird of paradise, is one of the most highly regarded scientific travelogues of the 19th century.

Search for diverse species on land, in the air and at sea including several species of birds of paradise, golden birdwing butterflies and a wealth of sea creatures. Plus you will experience local culture, primary rainforests, geology, conservation projects and relaxation of the highest order.

Accompanying is George Beccaloni, an entomologist, evolutionary biologist and Wallace expert. George helped devise this itinerary, which has the highest and most authoritative Wallace content of any Indonesian tour, and visits key places that aren’t on the itineraries of other tours. There will also be two cruise directors, who will share their knowledge of Indonesian marine biology, ornithology, marine conservation charities, linguistics and history. All three will join the daytime activities, sharing their considerable insight into the region’s history, the wildlife you will find and Wallace’s adventures.

For every guest, we will make a contribution to the Wallace Correspondence Project, which aims to locate, digitise, catalogue, transcribe, interpret and publish the surviving correspondence and other manuscripts of this important 19th-century scientist.

In partnership with Kraken Travel. 


DAY 1: ARRIVE INTO SORONG AND MEET YOUR FELLOW TRAVELLERS

After your flight arrives into the West Papuan port town of Sorong, the gateway to Raja Ampat, you will be met at the airport and transferred to the Swiss Belhotel in Sorong for one night. (We suggest you fly into the Indonesian capital Jakarta or Bali, then take a local flight to Sorong.)

Here, you will have a welcome dinner and meet entomologist, evolutionary biologist and Alfred Wallace expert George Beccaloni. Throughout the cruise, George will be giving talks covering the work of Alfred Russel Wallace, early human civilisation in Indonesia, and the varied flora, fauna and marine life that you will encounter on your journey.

DAY 2: JOIN THE OMBAK PUTIH, WEIGH ANCHOR AND VISIT THE YENBUBA FISHBOWL

In the morning, you will be transferred to your schooner, the stately Ombak Putih, a traditional Indonesian Pinisi. There will be time for you to get settled into your rooms, have a quick safety briefing, and enjoy an alfresco lunch while meeting the crew and the other accompanying cruise directors.

Ready to start your adventure, you will weigh anchor, leave the harbour behind, and cruise to Yenbuba at Mansuar Island, where you can enjoy your first snorkel. This site is known as the "fishbowl" because of the chance to see so many different types of fish around the bay.

The several snorkelling opportunities on the cruise are highlights and the crew make it easy for people of all ages and abilities to take part in exploring the fascinating marine environments. Less confident swimmers can be supported with floatation devices and you will be exploring shallow sites ideal for snorkelling with abundant coral and fish. If you have access to an underwater camera, you are guaranteed to return with amazing pictures.

DAY 3: RAINFOREST EXPLORATION, WALLACE’S HUT AND FRIWIN

Today, you will rise at 4.30am, off Saporkren village. The dinghy will carry you across to the village in the dark and a local guide will take you on a short drive into the forest on a pre-dawn quest to spot the gorgeous Wilson’s bird of paradise.

We hope that the efforts of your early start will pay off, enabling you to catch a rare and privileged sight of the bird’s elaborate courtship dance as the day breaks over the forest canopy. Our guests on the 2023 cruise did. For these excursions we recommend you bring binoculars and if you are planning on photography, a tripod will prove very useful.  Each time you return to the boat after an activity, a cold towel and drink will be waiting for you.

After breakfast back on board, you will visit the Wallace Hut on Gam Island, a faithful recreation maintained by local villagers of the hut Wallace spent time in on his expedition. On the way to the hut, there will be some fascinating insects and vegetation to discover.

After a siesta, the boat will travel to Friwin island, a beautiful snorkelling spot with colourful sea fans, several tunicate species such as the gold-mouth sea squirt (Polycarpa aurata), a “local resident” starry puffer fish and occasional sightings of blacktip reef shark.

Should you wish to sleep under the stars on the upper deck, the crew will provide sleeping bags.

DAY 4: WALLACE’S CHANNEL AND MIOSKON

When you emerge from your cabins, you will be in the south-west corner of Kabui Bay next to "Wallace’s Channel", where Wallace emerged after his challenging voyage from Seram. After breakfast, you can take dinghies through the narrow channel and examine the vegetation clinging to the limestone cliffs. You will then return to the ship and head out of the bay; with luck you will see some dolphins.

The boat will then move to Mioskon Island for more snorkelling and the opportunity to watch a multitude of giant fruit bats flying overhead just after sunset, followed by a beach BBQ in a secluded spot.

DAY 5: SAWINGGARAI, THE DAMPIER STRAIT AND ARBOREK

Today, will present another opportunity for keen naturalists as you head to the village of Sawinggarai on Gam Island.  You’ll walk into the forest on a pre-dawn quest to spot the remarkable red bird of paradise, one of the species that Wallace was most anxious to collect. With a little luck and the help of the local guides, you will see this rare bird’s elaborate courtship display as dawn breaks over the forest canopy. The guides are particularly good at imitating the female birds calls to draw out the male birds. 

After returning to the boat, you will turn your attention from the sky to the sea as the Ombak Putih makes her way through the Dampier Strait, home of some of Raja Ampat’s premier reefs including the Sawandarek house reef. Here, you will see masses of healthy coral formations, sightings of big Napoleon wrasse, schools of bumphead parrotfish, and if you’re lucky you might spot an extraordinary-looking wobbegong shark in the strait’s clear and biodiverse waters.

You will end the day by mooring off the tiny Arborek Island, where local children will perform their traditional dances for you. You can also walk around the village and gain a sense of the Asai culture, which is still kept very much alive by the villagers living in this isolated place. The sea here is notable for the thermocline (layered sea temperature changes) due to the location in the Dampier Strait, and you should see rare giant clams, batfish and silversides while in the water.

DAY 6: PENEMU, KLAARBECK AND FLYING FOXES ON YAR ISLAND

You will wake up in front of the island of Penemu, a dramatic location with a short hilltop climb to take in the amazing views. After some great snorkelling on the island’s reefs, you will cruise past Klaarbeck, where Wallace landed after his difficult journey from Seram after a combination of unpredictable winds, fierce currents, difficult anchorages and lack of water sources ended with him being unable to retrieve two crewmen who were stranded to the south on the small island of Kommerrust. 

Afterwards, we hope to reach nearby Yar Island at dusk to witness thousands of flying foxes emerging and flying off to feed. 

DAY 7: EXPLORE THE MISOOL ARCHIPELAGO

This morning you will wake to see the sun rise over the picturesque chain of islands that makes up the eastern part of the Misool archipelago. The topography is typical of karst dissolution, featuring a great number of tiny islets with bases that have been eroded over time by the relentless motion of the tides.

After an early breakfast, our tenders will take you into the heart of the bay to a partially submerged cav,e where it is possible to swim, snorkel or simply float while gazing up at the cavernous grotto adorned with astonishing stalactites. 

You will then move on to a mysterious jellyfish lake and swim among the many thousands of stingless animals: undoubtedly one of Raja Ampat’s most memorable activities. After returning to the boat, you can use the schooner's small boats to explore more of this impressive maze of karst islands, both above and below the surface, complete with mysterious skull cairns in sea-cave cemeteries, and prehistoric cave paintings, estimated to be anything between 3000 to 5000 years old and depicting various human figures and huge human palms, fish, and plants, tools and vessels.

DAY 8: SEARCHING FOR THE LESSER BIRDS OF PARADISE

Today we will try our best to help you view lesser birds of paradise displaying in the wild. It is an unforgettable experience for anyone lucky enough to see them. You will rise around 4am and have a quick breakfast and go ashore at Kapatcol, where local guides will be waiting to take you through the forest to hopefully see the birds as they dance around in their "lekking" (courtship display) trees. 

You will have time for a look around the village and possibly to visit the school and to learn about the way the Nature Conservancy environmental organisation is working with the village to empower local women with a fishing practice called "sasi".

DAY 9: SOUTHERN HALMAHERA

When you wake up today, you will find yourself off the extreme southern tip of Halmahera near the islands of Djoronga and Damar, where you will go snorkelling and visit a local village before heading off later in the day for Bacan.

DAY 10: WALLACE’S GREATEST ZOOLOGICAL DISCOVERIES ON BACAN

You will wake up off the western coast of Bacan, another of Indonesia’s historic spice sultanates. You will go ashore to explore the forested slopes where Wallace made some of his greatest zoological discoveries, including a marsupial mammal known as the Moluccan cuscus, the standardwing bird of paradise, the world's largest bee (Megachile pluto), and the huge and magnificent golden birdwing butterfly. Wallace described the latter species as the "finest butterfly in the world". When he caught a male for the first time in 1859, he wrote: "When I took it out of my net, and opened its gorgeous wings, I was nearer fainting with delight and excitement than I have ever been in my life; my heart beat violently, and the blood rushed to my head, leaving a headache for the rest of the day." Very few Westerners have ever seen this species alive and few groups of tourists are taken to see them. Of course, there is no guarantee you will see it - but we will try very hard and will be employing as your guide the one person on Bacan who knows exactly where it can be found.

You should also keep a close watch for these and a host of other animals, some of them endemic to these islands: parrots, cockatoos, lorikeets, hornbills, the elusive cuscus and the endangered black macaque – the only monkey in Maluku. 

DAY 11: GUARICI ARCHIPELAGO

Today you will visit the Guarici Archipelago, a chain of islands with white sandy beaches, vibrant coral reefs and some lovely local villages. Spend a full day here snorkelling, swimming, kayaking and paddle boarding, and pay a visit to one of the villages to meet the local people. The islands are part of a government-controlled conservation area, designed to protect the reefs and the many beautiful marine species that can be found here.

DAY 12: DODINGA: WHERE WALLACE MADE HIS GREATEST DISCOVERY

Today, you will wake up off the coast of Halmahera, just across from Ternate, with the mighty peaks of Ternate and Tidore as your dawn backdrop.

After breakfast, you will head to the village of Dodinga: the very place where Wallace was living when, in a fit of malarial delirium, he conceived the mechanism which drives evolutionary change - natural selection. Once he had recovered, he promptly wrote a detailed essay explaining his idea, which he posted to Charles Darwin as soon as he returned to his base on Ternate. His essay, which was published together with Darwin's thoughts on the subject in August 1858, prompted Darwin to publish his book On the Origin of Species in 1859, which explained the theory in greater detail. Dodinga is a pretty little riverside village with friendly people, colourful houses and the ruins of an old Portuguese fort, and its importance in the history of science cannot be understated.

After spending some time with the villagers, sharing some fresh coconuts and enjoying their hospitality, you will head back to the boat for lunch and then go off for an afternoon of snorkelling and relaxation. Then there will be a farewell party in the evening.

DAY 13: EXPLORE TERNATE THEN DEPART

Today marks the end of your adventure, but first you will head into the city, which has retained its commercial and political importance as the administrative and trading center of North Maluku. Of the four historically powerful spice sultanates, Ternate is the only one where the sultanate has survived uninterrupted. You will visit Fort Toluko built by the Portuguese and the "Kedaton", the palace of the sultan, with its rich collection of heirlooms.

You will also see the impressive Fort Oranje built by the VOC (Dutch East India Company) and the probable site of the house where Wallace lived when he posted his essay on natural selection to Charles Darwin in 1858. After your tour, you will travel back to the boat and say goodbye to the crew and your sea-based home, Ombak Putih, before we transfer you to the airport for your onward journey.

Contact an expert to discuss or book this tour

Book 2025

Book 2026

Phone +44 (0)203 642 0538

Highlights

  • 12 days aboard the beautiful sailing boat Ombak Putih.
  • A unique programme of island exploration and evening talks.
  • Explore primary rainforests, marine ecosystems and their flora and fauna, including several species of birds of paradise and Wallace’s golden birdwing butterfly.
  • In-depth insight into the life and work of Alfred Russel Wallace plus the natural treasures of Indonesia.
  • Many opportunities to enjoy the water by kayak, paddle board and snorkelling. 
  • No more than 22 passengers on board, which allows for close and frequent interaction with the accompanying experts.

Meet the expert

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Doctor George Beccaloni

George is an entomologist, evolutionary biologist, taxonomist, museum curator, science historian and natural history photographer, who worked at London’s Natural History Museum as a research entomologist and curator (specialising in butterflies and cockroaches) for 20 years. George has studied the life and work of Alfred Russel Wallace (the co-discoverer of evolution by natural selection) for 20 years and is the founder and director of the Wallace Correspondence Project. In 2023 George was chosen by the British Scientific Association to be a Scientific Section President.

There will also be cruise tour leaders on board who will cover the history, marine ecology, ornithology and culture of the islands.

WHAT'S INCLUDED

  • All meals, soft drinks, tea, coffee and snacks (vegetarian and special menus on request)
  • Professional cruise directors, accompanying experts and local guides delivering evening talks, daytime guiding and all activities
  • All excursions, park fees, cultural experiences and off boat fees
  • Hotel accommodation for your first night in Sorong
  • Snorkelling equipment
  • Use of paddleboards and kayaks
  • Cabin cleaning and two pieces of laundry every day
  • Transfers between your international flight arrival and the boat

WHAT'S NOT INCLUDED

  • Travel insurance
  • International and internal flights (we suggest you fly into Jakarta or Bali, then onward flight to Sorong. Returning from Ternate onto Jakarta/Bali).
  • For solo travellers we are happy to arrange for you to share a cabin with another guest of the same gender at no extra cost, if there is one available. Alternatively, if you wish to book a cabin for yourself, it is a supplement of $11,582 (2025, 2026 single supplement TBC.
  • Fine selection of wines, beer and spirits for sale onboard
  • Tips for the crew

HOW TO GET THERE

The cruise starts on the island of Sorong (airport code SOQ) and finishes on the island of Ternate (TTE). Both have airports that can be reached via international flights to Jakarta (CGK) or Bali (DPS).

PACE AND PHYSICALITY

No sailing experience is required, although if you would like to learn more about how the boat works and is navigated, the skipper will happily oblige, even letting you help hoist the sails.

There will be some very early morning starts, because the best time to view many species of birds of paradise is at daybreak, however there will be plenty of time to rest and recuperate on board.

When on land, there will be some trekking (a few kilometres) but nothing too strenuous. Some of trekking will be off-track and through primary rainforest, so stout walking shoes and trekking poles are recommended. We also suggest bringing binoculars and a strong head torch as these will help with observing the birds and navigating the forests just before dawn. When visiting the birds of paradise sites it is essential you wear muted colours, as bright colours can scare them away. So natural colours of brown, grey and green please.

There will be ample opportunity to explore the seas by snorkel. The crew can help with all this activy and they will guide the boat to shallow waters, so they can make it as inclusive as possible. The itinerary might change as local conditions and opportunities present themselves.

The plan is to be flexible to be able to provide you with the best experience possible. No activity or visit is compulsory and you are welcome to stay on board at your leisure.

Accommodation

Ombak Putih

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

A traditional Indonesian Pinisi made from ironwood that is small enough to explore the places that large cruise ships can’t and will mostly use its traditional sails to traverse the region, leading to a more elegant journey with lower impact on the region’s ecology. A stylish, well-appointed boat.

The boat houses 22 guests in 11 spacious twin-shares with twin bunks or double beds. All cabins offer creature comforts and necessary amenities including a private bathroom with toilet, hot shower and washbasin.

On the main deck, there is a covered saloon bar and air-conditioned dining area plus a rooftop lounge. The boat carries kayaks, two tender boats, stand-up paddleboards and snorkelling equipment. All of which will come in very useful for exploring the stunning coves and bays along the way. 

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Swiss Belhotel Sorong

A recently built four-star hotel just 10 minutes from the airport and in the heart of the city. It has large comfortable bedrooms and an outdoor pool, ideal for relaxing after your flight.