Indonesia & Raja Ampat

• Region: the Indonesian archipelago, from Bali east through Komodo and the Banda Sea to Raja Ampat in West Papua
• Scale: some 17,000 islands spread over more than 5,000 km
• Seasons: Komodo generally April to October, Raja Ampat generally October to April
• Komodo National Park: 1,733 square kilometres of which 603 is land, a UNESCO World Heritage site since 1991
• Komodo dragons: around 1,700 on Komodo island and 1,300 on Rinca, and extinct on Padar
• Raja Ampat: over 1,500 islands, cays and shoals around Misool, Salawati, Batanta and Waigeo, with 8,034 square kilometres of land
• Raja Ampat biodiversity: more than 600 hard coral species, about 75 per cent of the world's known total, plus 1,508 fish species
• Raja Ampat status: marine recreation park designated in 2009, UNESCO biosphere reserve in 2025
• Distance: Labuan Bajo to Sorong is roughly 800 nautical miles direct
• Clearance: an online Vessel Declaration System, with ports of entry including Benoa on Bali, Kupang, Ambon, Sorong and Biak
• Cruising permit: yachts are required to list every intended port in advance, and many ports require a registered agent
• Airports: Komodo International at Labuan Bajo, 2,750 metre runway, and Domine Eduard Osok at Sorong, 2,500 metres

The shape of the ground

Indonesia is not a cruising ground in the sense the Mediterranean is. It is a country the width of the Atlantic, and a yacht here works two or three defined areas out of it. Bali is the western gateway and the place with something like infrastructure. Komodo, in the Lesser Sundas, is about 250 nautical miles east of it. Raja Ampat, off the western tip of New Guinea, is roughly 800 miles beyond that in a straight line and more by any route a yacht actually takes.

Between them lie the Banda Sea and the spice islands, deep water, active volcanoes and villages that see a handful of yachts a year. That middle passage is the part owners either love or skip entirely. The practical decision is whether the boat is committing a season to Indonesia or simply passing through on a longer Asian programme.

Komodo

Komodo National Park covers 1,733 square kilometres, of which only 603 is land, across the three main islands of Komodo, Padar and Rinca and 26 smaller ones. It has been a UNESCO World Heritage site since 1991. Around 1,700 dragons live on Komodo island and 1,300 on Rinca, and the ranger-led walks are the guest excursion everyone books. Padar's ridge walk, with three bays below it, is the photograph.

The diving is the real reason to bring a boat. Manta Alley, Crystal Rock, Castle Rock, Batu Bolong, the Cauldron and Tatawa Besar are the named sites, and most of them are current-driven, which is what makes them so rich and what makes them serious. Water on the southern side of the park is markedly colder than the north. Labuan Bajo on Flores is the base town and it has grown fast.

Komodo runs April to October and Raja Ampat October to April, which is why a boat that comes here stays.

Raja Ampat

Raja Ampat is over 1,500 islands, cays and shoals around the four big ones, Misool, Salawati, Batanta and Waigeo, with 8,034 square kilometres of land in total. It holds more than 600 species of hard coral, about 75 per cent of every species known, along with 1,508 species of fish. It became a marine recreation park in 2009 and a UNESCO biosphere reserve in 2025. The reefs are not merely good. They are the global benchmark against which other reefs are measured.

The four working areas are the waters around northern Salawati, Batanta and south-west Waigeo, Mayalibit Bay in central Waigeo, the south-east of Misool, and the Sembilan Islands. Wayag, in the far north-west, is the karst lagoon of the postcards and a long run from anywhere. The Dampier Strait between Waigeo and Batanta runs hard, and everything there is a drift dive planned on the tide. Guests who dive will not want to leave.

A fortnight, and a season

A fortnight in Komodo out of Labuan Bajo is the standard programme and it works well. Guests fly into Komodo International, the boat covers the park in a week, and the second week runs east into the Flores Sea or south around Sumba. Everything is within a few hours of the last anchorage and the airport is on the doorstep.

A fortnight in Raja Ampat out of Sorong is the other half. What does not work is trying to do both in one guest trip, because the 800 miles between them is a delivery passage of several days through open water. Owners who want both bring the boat east in the second half of the year, work Komodo through the dry season, then run to Raja Ampat for the northern winter. That is a six-month commitment and it is how the resident fleet operates.

Where a 50 metre boat fits

There is effectively no marina berthing for a large yacht anywhere in this cruising ground. Benoa on Bali is the port of entry and the closest thing to a base, and everything east of it is anchoring. That is not the problem it sounds, because the anchorages are deep, sheltered and empty, but it means the boat is entirely self-supporting from the moment she leaves Bali.

The real constraint is charting. Much of eastern Indonesia is surveyed to nineteenth-century standards or not at all, reefs rise steeply from deep water, and satellite imagery is used alongside the chart as a matter of routine. A 50 metre yacht moves in good light with a spotter and a tender ahead in the tighter places. Depths are frequently too great to anchor close in, so long scope and careful holding checks are normal.

Weather and the two seasons

The archipelago straddles the equator and runs on monsoons instead of a summer and a winter. Komodo is generally reckoned to be at its best from April to October, in the dry south-east monsoon, with settled conditions and clear water. Raja Ampat runs the other way, and October to April is the calmer window there. That opposition is the single most useful fact about planning a year in Indonesian waters.

Rain, when it comes, comes hard and briefly. Squalls build fast and visibility drops with them. Sea temperature is warm everywhere except the southern side of Komodo, where upwelling brings it down sharply and guests will want a wetsuit they were not expecting. Indonesia sits outside the main tropical cyclone belts near the equator, though the southern islands are close enough to the Australian system to warrant watching.

Getting guests aboard

Komodo International at Labuan Bajo has a 2,750 metre runway, handled over a million passengers in 2024, and gained international status in 2024 with services to Kuala Lumpur. Domine Eduard Osok at Sorong has 2,500 metres and connects through Jakarta and Makassar, with the small strip at Waisai onward into Raja Ampat. Both are reachable by business jet.

The realistic route for a European guest is a long-haul flight to Singapore, Jakarta or Bali and a domestic connection of two to four hours after it. Add the drive and the tender run and a guest is looking at the better part of two days from London. Baggage handling on the domestic legs is a genuine risk, and crews here routinely keep dive gear aboard instead of relying on guests to carry it.

Ashore, and what guests actually do

This is a water destination and an owner should set expectations accordingly. Ashore in Komodo it is the ranger walks for the dragons, the Padar ridge and the pink sand beaches. In Raja Ampat it is village visits, the birds of paradise at dawn on Waigeo and the viewpoint above the Piaynemo karst. Bali at the start or end supplies temples, Ubud, restaurants and everything else a guest might miss.

Food outside Bali is local and simple, so a boat provisions properly in Benoa or flies it in. Nightlife east of Bali does not exist. What fills the days is diving, snorkelling over reefs with more coral species than the entire Caribbean, kayaking through karst and the fact that most anchorages have nothing in them but a fishing boat.

Papers, fuel, support and the honest downside

Clearance runs through an online vessel declaration system that has been changed more than once, with ports of entry including Benoa, Kupang, Ambon, Sorong and Biak. Yachts are expected to declare every intended port in advance, which sits awkwardly with the way anyone actually cruises an archipelago, and many ports now require a registered local agent. National park and marine park entry permits are charged separately and are checked. The charter position for a foreign-flagged yacht is the first thing to settle and needs current local advice, not an assumption carried over from Europe.

Fuel is available at Benoa and at the larger ports, and availability is fine and quality is the concern, so polishing and filtration matter. There is no refit yard in Indonesia that will take a 50 metre yacht, and Singapore, Phuket or Australia are the fallback, each of them days away. Medical evacuation from Raja Ampat is a serious planning exercise. Set against all of that, the reefs at Misool are the richest a private yacht can anchor over anywhere on earth.

Who it is for: An owner whose guests dive, with a self-sufficient boat, a good agent and the patience for permits and passages measured in days.