Construction of our new semi-submersible Heavy Transport Vessel Grand Tour officially began on 16 September at Guangzhou Shipyard International (GSI) in China.

Grand Tour is designed to transport some of the world's largest offshore structures, including next-generation 2GW offshore wind converter platforms, with a carrying capacity of up to 60,000 tonnes.

Measuring 230 metres in length and 57 metres in width, the vessel integrates seamlessly inside the bow slot of Pioneering Spirit, enabling the direct transfer of structures for installation.

By combining transport and installation capability, we can deliver complex offshore infrastructure more efficiently and with greater flexibility, from fabrication yard to installation site.

Scheduled for delivery in Q1 2028, Grand Tour will expand our transport capabilities and support efficient offshore operations worldwide.

About Allseas

Allseas is a family-owned global offshore contractor specializing in pipelay, subsea construction, and ultra-heavy lift. Since 1985, they have led the offshore energy market through bold innovation, consistently pushing technical boundaries to deliver pioneering, responsible solutions that evolve with the changing energy industry. By delivering cutting-edge solutions to the industry's toughest challenges, learning fast and sharing knowledge, Allseas redefines what is possible above and below the water’s surface, and seizes market opportunities that drive sustainable growth, leveraging engineering expertise to develop technologies that will play a key role in accelerating the energy transition.