 Like typical hydrothermal vents, the Endeavour Hydrothermal Vents form when cold seawater seeps into cracks and crevices in the Endeavour Segment where it becomes heated by magma that lies beneath the seafloor.As the water is heated, it rises and seeks a path back out into the Pacific Ocean through openings in the Endeavour Segment, forming hydrothermal vents.These hydrothermal vents release fluids with temperatures of over 300 °C and have been a focus of research by Canadian and international scientists.