Manta X — a new steel liveaboard built around serious Raja Ampat diving

Manta X is for divers who want Raja Ampat's reefs without accepting a basic liveaboard to reach them. She is a new steel vessel with the space, machinery and crew numbers for a week built around diving rather than sightseeing between occasional immersions. The reason to choose her is the combination: remote Raja Ampat sites, small guide-to-diver groups, four fast tenders and a crew structure large enough to keep the dive operation moving while the rest of the boat is looked after. Below the surface, the route moves from manta cleaning stations and schooling fish to soft-coral walls, current-fed reefs and close macro searches. Above it, the boat gives divers an air-conditioned saloon, sun deck and en-suite cabins. This suits experienced divers who want a full schedule and a properly supported platform, not a small wooden boat where every task competes for the same few hands.

From the dock, Manta X makes the impression of a purpose-built working dive vessel rather than a converted yacht. Her steel hull, twin engines and three Cummins generators point to a boat designed to carry the diving operation through Indonesian crossings, while the new build gives the interior a clean starting point instead of years of accumulated wear. Once aboard, movement is divided between the cabins, indoor saloon, sun deck and dive deck rather than concentrated in one cramped common room. The four diving tenders are the important part of that layout: divers do not need to wait for one small boat to shuttle everyone to the reef. Manta X was completed in 2026 and begins her first cruises in November that year. The character is straightforward: a large, modern platform whose value lies in how much of the boat is dedicated to keeping a demanding dive trip running.

The atmosphere is shaped by an unusually large working crew for a 20-guest boat. Five dive guides, a cruise leader, deck and tender hands, engineers, chefs and hostesses divide the day into clear jobs instead of asking the same few people to do everything. That shows up in the passenger experience: guests describe the trip as well supported, with the food, hospitality and attentive service all contributing to the week rather than only the diving. English is the crew language. The boat can also take groups or full charters, which changes the social shape depending on who has booked the cabins. On a normal trip, divers meet over meals, compare sightings after each dive and return to the same crew members for the next briefing. The service is personal because there are enough people behind it, not because the boat relies on grand promises.

The Raja Ampat and Misool routes run from Sorong back to Sorong for eight days and seven nights, with some departures extending to eleven days and ten nights. The site list is built around variety. At Manta Sandy, reef manta rays hover over cleaning stations close enough for divers and snorkelers to watch the behaviour unfold. Mike's Point reaches a maximum of -40m, combining reef overhangs covered in soft coral and sweetlips with a flat plateau where eagle rays may pass. Cape Kri is the abundance dive: one dive there recorded 374 fish species. Melissa's Garden has soft corals and staghorn formations, while Blue Magic puts schooling fish, wobbegongs and oceanic manta rays into the blue. Sardines and Sorido Wall are built around moving fish—dense schools, barracuda and reef sharks. Friwenbonda brings a soft-coral wall and pygmy seahorses; South Kri adds a relaxed drift with macro life and schooling fish. Ransiwor reaches a maximum of -30m, and Yenbuba Jetty also reaches -30m, with fish circling coral-covered pilings before the reef slopes away. Cape Mansuar, Cross Over and Sawandarek add current-fed schooling fish, blacktip reef sharks, eagle rays, mobulas and giant green turtles. Melissa's Garden is listed to -35m. The exact sequence changes with conditions, but the route earns its length through the contrast between big-animal stations, current dives and patient reef searching.

Manta Sandy →

Mike's Point →

Max. depth · 40 m

Cape Kri →

Melissa's Garden →

Max. depth · 35 m

Blue Magic →

Sardines →

Sorido Wall →

Friwenbonda →

South Kri →

Ransiwor →

Max. depth · 30 m

Yenbuba Jetty →

Max. depth · 30 m

Cape Mansuar →

Cross Over →

Sawandarek →

Across the route, the regular cast is substantial: barracuda and reef sharks are recorded at seven sites, while nudibranchs and trevallies recur throughout the itinerary. Fusiliers, napoleon wrasse, humphead parrotfish, sweetlips, reef turtles, blacktip and whitetip reef sharks, soft corals, pygmy seahorses, eagle rays and schooling fish give the reefs their constant movement. The particular reasons to stay alert are tied to named sites. Cape Kri is the place for the giant grouper. Blue Magic is the site associated with oceanic whitetip sharks and tuna, as well as oceanic manta rays. Yenbuba Jetty rewards a slower search for anthias and damselfish around the coral-covered pilings. Ransiwor is where an idole des Maures, a titan triggerfish and an octopus are recorded, while South Kri concentrates big-eye trevally, crabs and shrimp in the macro scene. Sorido Wall is the named site for surgeonfish, alongside barracuda and reef sharks. None of these sightings is guaranteed; the point of the route is that the habitat keeps offering both large movement and small detail.

Manta Ray →

Mobula birostris

Seahorse →

Hippocampus

Nudibranch →

Nudibranchia

Napoleon Wrasse →

Cheilinus undulatus

Oceanic Whitetip Shark →

Carcharhinus longimanus

Five dive guides work with a published guide-to-diver ratio of one guide for two divers, supported by a cruise leader who is also an instructor. The crew speaks English. The minimum is 40 logged dives and an Advanced Open Water Diver certification or equivalent, which fits the current and site demands of Raja Ampat better than an entry-level holiday operation. Briefings are handled by the dive team before each descent, with groups kept small for the guide-to-diver ratio and the tender logistics. The boat lists full safety equipment and a strong safety setup; its safety information includes cabin alarms, emergency exits, an emergency action plan and a safety briefing. Courses are not listed as a standard onboard offering. Divers should therefore choose Manta X for guided exploration at the required level, not on the expectation of completing a particular training course during the cruise.

The dive deck works from four 5.8-metre dinghies fitted with 60 hp outboard motors. That is the practical advantage for Raja Ampat: groups can be spread between tenders and dropped closer to the site instead of turning every entry into a single large boarding operation. Manta X carries 12-litre tanks and weights as part of the diving package. Equipment rental and nitrox cost extra. Three 250-litre compressors handle filling, and one nitrox membrane system supplies nitrox when booked. The boat is not set up for technical diving. The available specifications do not identify tank material, valve standard, rental brands, camera facilities, rinse-tank arrangement or a hot-water shower on the dive deck, so divers bringing specialised equipment should ask before departure. The tenders are the clear strength here: four boats give the guides room to organise entries, exits and surface collection across Raja Ampat's spread-out reefs.

Between dives, the boat gives a diver three useful choices: retreat into the air-conditioned indoor saloon, find shade or wind on the sun deck, or stay near the working side of the vessel and watch the tenders move between sites. The saloon has audio and video entertainment, but the stronger use of the quiet hours is simpler: dry equipment, review photographs, eat, sleep and wait for the next briefing. Massage is available as an extra service. Sailing time becomes part of the itinerary on Raja Ampat and Misool routes, especially when the boat moves between island groups rather than rushing from one reef to the next. Manta X is not presented as a resort with a long list of diversions; the spaces make the gaps between dives comfortable and leave the attention where it belongs.

A day on Manta X starts with the first briefing before the first dive, then follows the basic liveaboard sequence: dive, breakfast, surface interval, dive again, a meal, another interval and further dives as the site and conditions allow. The usual programme is three to four dives a day, while the final day is reduced to two. Between descents, divers return by tender, receive a warm towel and drink, eat, sleep or move into the saloon and sun deck before the next call. The compressors keep the tanks moving through the cycle, and the tenders take groups back out to the reef rather than making everyone wait on the main boat. On the last diving day, the final dive ends at midday; the boat then sails back toward Sorong, leaving time to wash and dry equipment and rest before departure. The final morning brings a light breakfast, farewells and transfer ashore.

Meals are served buffet-style, with both Western and local food, and the galley can handle dietary restrictions when arranged for the trip. The useful detail is not a promise of restaurant presentation; it is the timing and practicality of food around diving. Full board is included, with snacks, coffee, tea, Milo, other hot drinks and soft drinks available through the day. A warm towel and drink after every dive take the edge off the repeated cycle of climbing out of a tender, shedding equipment and waiting for the next briefing. Alcohol and spirits are available on board but are extra. On a route where divers may make three or four descents in a day, the buffet format lets people eat when they are ready instead of forcing the whole group into one elaborate sitting.

The cabins are en-suite, air-conditioned and arranged as twin or double rooms, with VIP double cabins on the upper deck and further twin or double options on the main and lower decks. That choice matters over several days of four-dive schedules: the room is a private place to cool down, dry off and sleep between briefings, rather than just a bunk reached through a shared space. The boat's steel construction should also feel different from a light wooden vessel when the sea builds, although it does not remove the movement of the ocean. Outside the cabin, the indoor saloon gives a cooler retreat from Raja Ampat's heat, while the sun deck offers the open-air alternative. Satellite internet is available for a surcharge, but this is still a liveaboard where the sea, the next dive and the people at the table occupy most of the day.

Manta X departs from and returns to Sorong, West Papua, for the Raja Ampat and Misool cruises. Scheduled group transfers between a Sorong hotel or airport and the boat are included; private transfers are separate. The return transfer is arranged for the final morning, with the latest check-out at 10am. Arriving in Sorong with a full margin before embarkation is the sensible choice, and an overnight before the cruise avoids turning a delayed domestic flight into a missed departure.