For strong-current diving at Batu Bolong, pack five items above everything else: a surface marker buoy with at least six metres of spool line, a loud surface signalling device, a dive computer you can read at a glance, a full-length exposure suit, and stiff blade fins you can actually push water with. Everything else on a Batu Bolong packing list is comfort; those five are what let you handle a current that turns while you are in it.
Why does Batu Bolong need a different kit list?
Batu Bolong is a pinnacle in a tidal channel, which means the water does not flow past you at a constant speed — it accelerates around the rock and can change direction during a single dive. Kit that is adequate on a calm reef becomes marginal here. Soft travel fins that work fine on a house reef leave you unable to reposition against moving water, and a short spool means your SMB will not reach the surface from safety-stop depth if you are drifting.
The other difference is that you may surface away from the boat. That is not a failure scenario at a current site; it is a normal outcome, and the kit list assumes it. Anything that makes you visible and audible on the surface earns its place in your bag.
What is the essential safety kit?
An SMB and spool are the single most important items, and the spool should carry enough line for the deepest point you plan to deploy from, with margin. Most divers here carry a spool rather than a finger reel, because tangles in current are worse than tangles anywhere else. Learn to deploy on land or in a pool before the trip if you have not used yours recently.
- Surface marker buoy, tall and brightly coloured, with a spool of adequate line
- Whistle on the BCD plus a signalling mirror, and ideally an air horn
- Dive computer with a clear display, plus a backup timing device
- Cutting tool that you can reach with either hand
- Personal locator beacon or dive-specific satellite signal device if you own one
- Compass, even though the site is dived visually, for surface orientation
Which exposure and propulsion gear works best?
Water temperature in Komodo generally sits in the high twenties Celsius, but cooler nutrient-rich water pushes through the channels at times, and repeat diving across several days makes small chills accumulate. A 3mm full-length suit is the usual choice, with a 5mm or a hooded vest for divers who feel the cold or plan four dives a day. Full-length also protects you from stray contact with rock and hydroids when you tuck in behind the reef contour.
Fins matter more here than most divers expect. Stiffer blades or a decent paddle fin give you the power to hold position and reposition; ultra-light travel fins do not. Bring gloves if your operator permits them, since gripping bare rock in current is sometimes the safest option, but check first — some operators and marine parks restrict glove use to discourage touching coral.
What should photographers pack differently?
Camera divers at Batu Bolong should assume they will need one hand free at all times, which rules out the big two-handed rig unless you are genuinely current-hardened. Wide angle is the right call: the site’s appeal is layered hard coral and fish schools stacked against the wall, and that is a reefscape subject, not a macro one. Strobes on short arms are easier to control than long arms in flow.
Bring a lanyard or clip so the camera can be secured while you deal with buoyancy or an SMB, spare O-rings, silica packs, and more batteries than you think you need — charging on boats is often limited. Divers who want the dive plan built around shooting conditions rather than around a general group schedule usually book our photo-focused Batu Bolong session, where the entry timing is chosen for light and current rather than convenience.
What can you leave behind?
Reef hooks are the classic packing debate at this site. Some guides allow them on bare substrate and brief their use; others discourage them at Batu Bolong specifically, because the coral cover that makes the site famous is exactly what a badly placed hook damages. Pack one if you own it, but ask during the briefing and accept the answer.
You can also skip heavy weights — most operators supply weights and tanks, and carrying your own lead is pointless on a flight. Full sets of rental gear are widely available in Labuan Bajo, so budget-focused travellers do not need to bring anything beyond mask, computer and safety kit. Our budget day trip for backpackers lists exactly what is included and what you would rent, so you can pack light without arriving short.
How should you pack it for a boat day?
Assume everything not in a dry bag will get wet, because on an open dive boat it will. A single soft duffel or mesh bag for dive gear plus one small dry bag for phone, documents and camera batteries is the standard setup, and hard suitcases are awkward on tenders. Reef-safe sunscreen, a wide-brim hat, a light long-sleeve layer and a refillable water bottle handle the surface intervals, which in Komodo are hot and exposed.
| Category | Bring | Usually rentable in Labuan Bajo |
|---|---|---|
| Safety | SMB, spool, whistle, cutting tool | Basic SMB only, quality varies |
| Personal fit | Mask, computer, exposure suit | Mask and suit, fit not guaranteed |
| Propulsion | Stiff fins | Yes, often soft travel fins |
| Life support | Nothing required | BCD, regulator, tanks, weights |
| Topside | Dry bag, reef-safe sunscreen, hat | Rarely |
Frequently asked questions
Do I need a reef hook for Batu Bolong?
Not necessarily, and at this site it may not be permitted. Batu Bolong’s value is its dense hard-coral cover, and hooks placed carelessly break it, so some guides prohibit them outright while others allow use on bare rock. Bring one if you already own it, then ask during the briefing before you clip in. The alternative is staying low against the reef contour and using the shelter the pinnacle already provides.
What wetsuit thickness should I pack for Komodo?
A 3mm full-length suit covers most of the year for most divers at the central park sites, including Batu Bolong. Add a hooded vest or step up to 5mm if you chill easily, plan four dives a day, or are diving in the middle of the year when cooler nutrient-rich water moves through the channels. Full-length rather than shorty is preferred here for abrasion protection near rock.
Can I rent everything in Labuan Bajo instead of packing?
Largely yes. Dive shops in town rent BCDs, regulators, suits, fins, masks and computers, and tanks and weights are included with trips. The items worth bringing yourself are the ones where fit or reliability matters most: mask, computer and your own SMB and spool. Rental fin stiffness is the most common disappointment at current sites, so pack fins if you have room.
How long should my SMB spool line be?
Long enough to deploy from your deepest planned safety stop with slack to spare, which for most divers means at least a thirty-metre spool rather than a short finger reel. Deploying from depth in current requires line you can let run without it snatching, and a short reel forces you to ascend before you are visible. Practise deployment before the trip rather than learning it on the day.
Check your kit list with us before you fly
Send us your planned dates and what gear you already own, and we will tell you what to bring, what to rent in Labuan Bajo, and what the boat supplies. Message our team on WhatsApp at +62 811 3823 875 or email sales@komodoluxury.com.