The DSV 'Mermaid Endurer' is a Norwegian purpose-built DP2 dive support and light construction vessel, specially designed for operations in severe weather conditions such as the North Sea. The vessel has high manoeuvrability and station keeping capabilities and is equipped with a built in 18-man single bell saturation diving system complete with a self-propelled hyperbaric lifeboat. The vessel has a 100-tonne active heave-compensated knuckle boom crane and accommodation for 86 personnel. The DSV 'Mermaid Endurer' is DNV classed and flies the Panama flag.