17-metre Black Cat Catamaran Grounds at Akaroa; All Evacuated, TAIC Probes

A 17-metre Black Cat Cruises catamaran ran aground just outside the Akaroa Heads in the Akaroa Marine Reserve and later became wrecked on shore after swells dislodged it from rocks. All 38 passengers and three crew were evacuated safely, and an exclusion zone and environmental response remain in place.

The grounding occurred on Saturday morning, 31 January 2026, when the sightseeing dolphin-watching vessel became stranded on rocks near the heads. The vessel was initially reported partially capsized before swells pushed it free and left it wrecked along the shoreline. New drone footage and photographs released after the incident show the catamaran submerged close to shore and later sitting on the beach.

Authorities say the vessel was carrying 2,240 litres of marine diesel and about 120 litres of other oils in sealed containers and engines. Some diesel leaked into the sea and fuel was observed in Nikau Palm Valley Bay, a protected area inside the reserve. A 200-metre exclusion zone surrounds the wreck as Environment Canterbury teams collect debris and monitor wildlife and water quality.

Environment Canterbury on-scene command highlighted wildlife concerns after staff observed a crested penguin behaving unusually. "The wildlife team tried to capture the penguin to assess its welfare and whether its behaviour was because of contact with oil," said Emma Parr. Teams attempted to assess the penguin and continue to monitor for further impacts along the shoreline.

The Transport Accident Investigation Commission has opened an investigation into the incident, and Environment Canterbury is leading the environmental response. Salvage plans were developed but had to be adapted after swells dislodged the boat; efforts were halted amid forecasts of bad weather for the following two days, leaving the wreck in place while responders reassess options.

Black Cat Cruises issued a statement underscoring the operator's priorities: "The safety and wellbeing of our customers, crew and the marine environment is always our highest priority. Our team approaches every experience with care, respect, and responsibility." The company also noted this was the first incident of its kind in more than 40 years of operations.

For catamaran owners, operators, and local skippers, the incident is a reminder of how quickly sheltered-sounding waters can become hazardous near heads and shorelines and how weather and swell can compound a grounding into a wreck. The 200-metre exclusion zone, ongoing debris collection, and wildlife monitoring will affect recreational and commercial users of Akaroa Harbour while authorities assess the environmental footprint and salvage options.

What comes next is a phased response: TAIC will examine navigational and operational factors, Environment Canterbury will publish findings on contamination and wildlife effects as assessments conclude, and salvage contractors will outline timelines once weather and safety conditions allow a controlled recovery. Operators and boaties should steer clear of the exclusion zone and watch for formal notices as the investigation and clean-up continue.