A phinisi dive charter is a private liveaboard voyage with a working dive deck — compressor, tank rack, rinse tanks, camera table and tenders — where diving is scheduled around tide rather than around lunch. The boat charter and the dive package are usually two separate lines: you charter the vessel at the standard private rates (indicatively IDR 28–45 million per day on standard vessels, USD 2,500–8,000 per night on premium ones) and then add a dive supplement covering tanks, weights, guides and nitrox where the boat has a membrane. This page covers what to check on the dive deck, how many dives each region realistically delivers, and what certification you actually need.
Diving is the biggest single add-on in Indonesian chartering and the one where boats differ most. Two phinisi with identical cabin photographs can be a serious dive platform and a beautiful sightseeing boat with a couple of tanks. The difference lives on the stern.
What does a proper dive deck have?
- Compressor — enough capacity to fill for the whole guest complement between dives without a queue, plus a backup or spares aboard. Ask the fill rate, not just “yes we have one”.
- Nitrox membrane or bank — enriched air is common on premium phinisi and absent on many standard ones. It is not a given; confirm before booking if you dive nitrox.
- Tank rack with individual stations — a numbered position per diver where your kit stays assembled all week, plus a bench with headroom.
- Rinse tanks, plural — separate freshwater tanks for cameras, computers and general kit. One communal bin is a red flag for photographers.
- Camera table with padded surface, charging points and, ideally, shade and a dry cabinet.
- Tenders — at least two on a full boat, so a group can be dropped, recovered and repositioned without waiting.
- Entry and exit — a stable platform or ladder that works in current, and a crew member whose job is the water.
- Oxygen unit and first-aid kit on the dive deck, not locked in a cabin.
How many dives per day, and where?
| Region | Dives per day | Typical tanks per 7-night trip | Certification baseline | Logged-dive guidance |
|---|---|---|---|---|
| Komodo | 3, plus occasional night dive | 18–22 | Open Water for sheltered sites; Advanced for Batu Bolong, Castle Rock, Crystal Rock | 30+ for the current sites |
| Raja Ampat — Dampier Strait | 3–4 | 20–26 | Open Water; Advanced strongly preferred | 30+ for Cape Kri, Blue Magic, Sardine Reef |
| Raja Ampat — Misool | 3–4 | 20–26 | Advanced | 30–50+ for the pinnacles |
| Banda Sea / Spice Islands | 2–3, weather-dependent | 16–22 | Advanced | 50+, open-water passages |
| Wakatobi | 3 | 18–22 | Open Water; Advanced for offshore pinnacles | 25+ |
| Alor | 3 | 18–22 | Advanced | 50+, cold upwellings and strong current |
| Cenderawasih Bay | 2–3 | 14–20 | Open Water | 20+, gentle conditions |
These are typical, not contractual. Weather, tide and the group’s slowest air consumer all move the number, and a guide who cancels a third dive because the current turned is doing the job properly.
Guide ratios, briefings and current protocol
On a well-run Indonesian phinisi, the working ratio is roughly one guide to four divers, sometimes one to six on gentle sites. Every dive gets a proper briefing covering the entry point, the expected current direction and strength, the planned profile, maximum depth and time, the recall signal and the exit plan.
Indonesia’s best sites are current sites, so a few protocols are standard rather than optional. Negative entries — deflating and descending immediately — are normal on seamounts. Reef hooks are used on sites like Castle Rock and Blue Magic to hold position in flow without touching coral; hook into dead rock, never into living coral, and never anchor yourself to a sea fan. Every diver carries a surface marker buoy and knows how to deploy it, because in current the tender finds the buoy, not the diver. If you have never dived current, say so at booking — it changes the site plan, not your eligibility.
Safety: the things worth asking before you pay
Ask these five questions of any boat, including ours:
- Is there an oxygen unit on the dive deck, and how many litres? Emergency oxygen is the single most useful item on a remote liveaboard.
- What are the communications? VHF is baseline; satellite communications matter on Banda Sea and Misool routes.
- What is the diving insurance requirement? Most reputable operators require dive accident cover — DAN or equivalent — and you should carry it whether or not it is demanded.
- What is the no-fly policy? The standard conservative guidance after repetitive multi-day diving is a minimum of 18 hours before flying, and boats schedule the last dive accordingly. Never let a schedule push you inside that.
- Where is the nearest recompression chamber? In practice, evacuation from Komodo, Raja Ampat or the Banda Sea is a multi-hour undertaking. This is exactly why conservative profiles, nitrox and good hydration matter more here than on a resort dive.
What to bring, and what the boat supplies
| Usually supplied | Usually rented | Bring your own |
|---|---|---|
| Tanks, weights and belts, snorkel gear, tenders, guides | BCD, regulator, wetsuit, dive computer, torch | Mask, computer, SMB and reel, reef hook, gloves where permitted, spare mask strap, save-a-dive kit |
Bring your own mask and computer at minimum — they are the two items where rental quality most affects your week. A 3 mm wetsuit covers most Indonesian water; Alor and the southern Komodo months in the north-west monsoon run cooler, so a 5 mm or a hooded vest earns its space. Photographers should confirm the charging arrangement and voltage on the camera table before packing a hard case full of batteries.
What does the dive package add to the charter price?
Dive supplements are quoted per trip rather than published as a fixed tariff, because they depend on the number of divers, dives per day, whether nitrox is used and whether the boat has to carry an extra guide. Structurally, expect the quotation to itemise: tanks and weights, guide fees, nitrox supplement where available, equipment rental per item per day, and any dive-specific park surcharge — in Komodo National Park, divers usually pay a small surcharge over snorkellers on top of the standard entrance ticket of approximately IDR 250,000 per foreign visitor per day and the operator-collected conservation and harbour components.
Two honest notes. First, a boat that quotes “unlimited diving” is quoting marketing, not physics — compressor capacity, guide hours and daylight all cap the real number. Second, cheap dive supplements on cheap boats usually mean fewer guides and older kit. On a remote liveaboard, that is the wrong place to save money.
Which charter should divers pick?
For a first Indonesian dive charter with maximum variety in a short window, the 4D3N Komodo charter gives eight or more dives with a real chance at mantas. For the highest fish density and the widest range of sites, the seven-night Raja Ampat itinerary. For soft coral and pinnacles with no other boats, the Misool charter. Site-by-site detail for the northern archipelago sits on our best Raja Ampat dive sites guide.
Frequently asked questions
Do Indonesian phinisi offer nitrox?
Many premium vessels carry a nitrox membrane; many standard ones do not. Never assume — confirm in writing before booking, along with whether nitrox is included or supplemented.
How many dives will I get on a seven-night charter?
Typically 18 to 26 depending on region and conditions, at three to four dives a day with the last day shortened for no-fly time.
Do I need Advanced Open Water?
Not to board, but Indonesia’s signature sites are current-driven. Advanced with thirty or more logged dives is the realistic baseline for Komodo’s north, the Dampier Strait and Misool’s pinnacles.
Can beginners and non-divers join the same boat?
Yes, and most charters run that way. Divers go down with the guide, snorkellers work the shallows from the tender, and the boat’s schedule accommodates both. Some vessels can arrange certification courses aboard — ask early, as it needs an instructor on the crew list.
Is dive insurance required?
We require dive accident cover, and you should carry it regardless. Evacuation from these regions is slow and expensive.
How long before flying should I stop diving?
A minimum of 18 hours after repetitive multi-day diving, and more is better. Itineraries are built around this, which is why the last day is usually a single shallow dive or none.
Can I bring a rebreather?
Sometimes, on boats equipped for it, with advance notice for sorb, oxygen and diluent supply. This must be arranged well before departure, never on arrival.
What if I use more air than everyone else?
Completely normal, and the guides plan around it. Multi-level profiles, a slightly shallower turn and nitrox all help. Nobody will make an issue of it — a diver who surfaces with reserve is a diver who did it right.
Book a phinisi dive charter
Dive charters are operated by Komodo Luxury, part of Juara Holding Group, chartering Indonesian phinisi since 2015. Send us your certification level, logged-dive count, whether you need nitrox and how many of your group dive — those four answers determine which boats we shortlist, and we would rather tell you a vessel is wrong for you than sell it.
WhatsApp: +62 811 3823 875 · Email: sales@komodoluxury.com
Further reading: pack correctly with our season-by-season gear guide, and check any operator against the twelve questions in how to vet a phinisi operator.