Coastal Shipping to PNG’s Island Provinces: How Domestic Sea Freight Works
For much of PNG, the sea is the highway. Coastal shipping links Lae and Port Moresby with island provinces and coastal towns that have no road connection. Here’s how the network works and how to plan around it.
In this guide
- Close to 250 vessels operate in PNG’s domestic shipping trade, from container ships to landing craft.
- Lae is the main hub for outbound coastal containers.
- Lae, Port Moresby, Madang, Kimbe and Rabaul handle both international and coastal traffic; many other ports rely on coastal services.
- Coastal schedules are less frequent than international ones, so plan the connection early.
Why coastal shipping matters
PNG’s island provinces, including East and West New Britain, New Ireland and Manus, and the Autonomous Region of Bougainville, have no road link to the mainland. Neither do many coastal towns on the north coast, in Milne Bay and along the southern coast. For them, coastal shipping is the main way to receive anything bulky or heavy.
Coastal services also move a growing volume of containers from Lae to other PNG ports, as distributors use Lae as a hub for national supply.
The port network
PNG has 23 declared ports. PNG Ports Corporation manages 15 of them: Lae, Motukea in Port Moresby, Kimbe, Madang, Alotau, Rabaul, Kavieng, Oro Bay, Kieta, Buka, Vanimo, Lorengau, Wewak, Daru and Aitape. Beyond these, private wharves serve mines and industrial projects, and countless small jetties and beaches serve local communities.
Only Lae, Port Moresby, Madang, Kimbe and Rabaul have the infrastructure to handle significant international traffic alongside coastal shipping. Kimbe and Rabaul are the busiest after the two main ports, accounting for about 8% and 6% of declared-port throughput respectively.
Types of coastal service
Coastal shipping in PNG covers a wide range of vessels and services:
- Container services connecting Lae and Port Moresby with the main regional ports on regular rotations.
- General cargo and breakbulk vessels carrying mixed freight, vehicles, building materials and drums.
- Landing craft that can load and unload at beaches and small jetties with no port infrastructure.
- Charters for project cargo, construction materials and remote sites.
In total, close to 250 vessels operate in the domestic trade, some of them containerised. Before booking, check whether the destination port or landing has cranes, or whether the vessel will need to use its own gear.
Linking international and coastal legs
Cargo for the islands can reach its destination in two ways. Some international services call directly at ports such as Rabaul, Kimbe or Madang, which avoids a transhipment. Otherwise, cargo lands in Lae or Port Moresby and continues on a coastal vessel.
Imported cargo is generally cleared through customs at its first port of entry before it moves on as domestic cargo. That means planning clearance, collection and the coastal booking together, so the cargo doesn’t sit at the port waiting for the next sailing.
- Check the coastal sailing schedule before the international vessel arrives.
- Confirm whether the shipping line allows its container to travel on to the islands, or whether the cargo must be unpacked and reloaded.
- Ask your forwarder whether they can arrange the coastal leg as part of a through service.
Costs and paperwork
Coastal freight for containers is usually quoted per box, while breakbulk and general cargo is often charged per revenue tonne, meaning the greater of the weight in tonnes or the volume in cubic metres. On top of the freight, expect port and handling charges at both the loading and discharge ports, and local delivery at the destination.
The coastal leg travels on its own transport document, separate from the international bill of lading unless your forwarder has arranged a through service. Keep descriptions, marks and quantities consistent across both, and record seal numbers at each hand-over so any shortages can be traced to the right leg.
Go deeper
Planning tips for coastal freight
- Book early. Coastal sailings to smaller ports can be weekly, fortnightly or less frequent.
- Confirm what the destination can handle, including cranes, forklifts and storage.
- Pack for multiple handling and for exposure to sea spray and rain, especially on landing craft.
- Allow for weather. Sea conditions can delay sailings and unloading at exposed landings.
- Make sure your insurance covers the coastal leg and any beach landing.
- Keep documents consistent across the international and domestic legs.
Frequently asked questions
How does freight get to the island provinces?
Mostly by coastal shipping from Lae and Port Moresby. Some international services also call directly at island ports such as Rabaul and Kimbe.
Which PNG ports handle international ships?
Lae, Port Moresby, Madang, Kimbe and Rabaul have the infrastructure for significant international traffic as well as coastal shipping.
Can a container go straight through to an island port?
Sometimes. It depends on the shipping line’s policy and the coastal service. Otherwise, the cargo is unpacked and reloaded for the coastal leg.
Can coastal vessels deliver where there’s no wharf?
Yes. Landing craft can load and unload at beaches and small jetties, which is common for remote communities and project sites.
More on ports and inland logistics
Sources
Philip Thomas
Philip is the lead author and editor at Phantom8. He writes practical guides to shipping freight into Papua New Guinea, with a focus on choosing the right port, clearing customs and planning the inland leg.
General information only. This guide is general in nature and isn’t legal, customs or logistics advice for your specific shipment. Port operations, road conditions, schedules and charges change, so confirm the details with your freight forwarder, transport operator or the relevant authority before you ship.