Our ocean-going tug, the Acheron III, tows our barges on coastal and offshore jobs around New Zealand, as far as the Chatham Islands.
The Acheron III

The Acheron III, our ocean-going tug.
The Acheron III is a 23.9 by 7.3 metre ocean-going, twin screw tug with a 16 tonne bollard pull.
She is available for charter towing our barges, including the Annie McC, on coastal and offshore tows. She is also fitted with a WASSP F3 multibeam sonar for seafloor surveys.
- Ocean-going, twin screw tug
- 16 tonne bollard pull
- 23.9m by 7.3m
- Coastal and offshore tows
The tug
16 tonnes
Bollard pull.
23.9 metres
Length, with a 7.3m beam.
163 tonnes
Gross tonnage.
3.5 metres
Maximum draft, 3.0m light.
Chatham Islands wharf and breakwater
In April 2016 the Acheron III, with one of our barges in tow, carried materials and machinery for a new wharf and breakwater at Waitangi. The first of six trips carried a 125T digger, a 65T crane and around 200T of cement.
Read about the Chatham Islands project
Barging timber kilns
Using the Acheron III and one of our barges, we carried two 17 by 11 metre timber kilns and other bulk items from Tauranga to Whangarei, lashed to the deck for the trip up the coast.
Read about the timber kilns


Other ways we move it
Vessels and trucks for your cargo.
Roll-on-Roll-off
Vessels with ramps, so plant, trucks and equipment can be driven on and off.
Find out more about roll-on-roll-off
Project Cargo
Large, heavy and awkward loads carried on deck, matched to the right vessel and crew.
Find out more about project cargo
Road Transport
Truck and trailer units carrying up to 38 tonnes across Auckland, Waikato and Bay of Plenty.
Find out more about road transportSafety and biosecurity
McCallum Bros vessels and maritime personnel operate under a comprehensive and effective Safe Ship Management System, and we hold biosecurity certification for our marine operations.
Need a tow?
Tell us what needs towing, where it’s going and when, and we’ll come back to you with options and a price.
Enquire now